Home / 1,213,100,891.80-1,819,651,337.70-1,188,914,421.40

Finding the Fourth Proportional to 1,213,100,891.80, 1,819,651,337.70 and 1,188,914,421.40

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Solution

The fourth proportional to 1,213,100,891.80, 1,819,651,337.70 and 1,188,914,421.40 is: 1,783,371,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,100,891.80 : 1,819,651,337.70 = 1,188,914,421.40 : x
  2. Step 2: Convert to fraction form
    1,213,100,891.80/1,819,651,337.70 = 1,188,914,421.40/x
  3. Step 3: Cross multiply
    1,213,100,891.80x = 1,819,651,337.70 × 1,188,914,421.40
  4. Step 4: Simplify right side
    1,213,100,891.80x = 2,163,409,717,311,331,840
  5. Step 5: Solve for x
    x = 2,163,409,717,311,331,840/1,213,100,891.80
  6. Step 6: Final answer
    x = 1,783,371,632.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.