Home / 1,311,217,983,527.20-1,809,359,385,487.20-725,255,217,621.12

Finding the Fourth Proportional to 1,311,217,983,527.20, 1,809,359,385,487.20 and 725,255,217,621.12

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Solution

The fourth proportional to 1,311,217,983,527.20, 1,809,359,385,487.20 and 725,255,217,621.12 is: 1,000,785,034,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,217,983,527.20 : 1,809,359,385,487.20 = 725,255,217,621.12 : x
  2. Step 2: Convert to fraction form
    1,311,217,983,527.20/1,809,359,385,487.20 = 725,255,217,621.12/x
  3. Step 3: Cross multiply
    1,311,217,983,527.20x = 1,809,359,385,487.20 × 725,255,217,621.12
  4. Step 4: Simplify right side
    1,311,217,983,527.20x = 1,312,247,334,876,335,187,165,184
  5. Step 5: Solve for x
    x = 1,312,247,334,876,335,187,165,184/1,311,217,983,527.20
  6. Step 6: Final answer
    x = 1,000,785,034,496.22

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Double scale
Find fourth proportional to 1,311,217,983,528.20, 1,809,359,385,488.58 and 725,255,217,622.12
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.