Home / 1,209,127,466.52-1,669,110,764.13-812,880,264.96

Finding the Fourth Proportional to 1,209,127,466.52, 1,669,110,764.13 and 812,880,264.96

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Solution

The fourth proportional to 1,209,127,466.52, 1,669,110,764.13 and 812,880,264.96 is: 1,122,120,899.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,127,466.52 : 1,669,110,764.13 = 812,880,264.96 : x
  2. Step 2: Convert to fraction form
    1,209,127,466.52/1,669,110,764.13 = 812,880,264.96/x
  3. Step 3: Cross multiply
    1,209,127,466.52x = 1,669,110,764.13 × 812,880,264.96
  4. Step 4: Simplify right side
    1,209,127,466.52x = 1,356,787,200,193,582,592
  5. Step 5: Solve for x
    x = 1,356,787,200,193,582,592/1,209,127,466.52
  6. Step 6: Final answer
    x = 1,122,120,899.38

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1.5x scale

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.