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Finding the Fourth Proportional to 408,070,851.20, 572,508,515.20 and 408,070,851.20

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Solution

The fourth proportional to 408,070,851.20, 572,508,515.20 and 408,070,851.20 is: 572,508,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,070,851.20 : 572,508,515.20 = 408,070,851.20 : x
  2. Step 2: Convert to fraction form
    408,070,851.20/572,508,515.20 = 408,070,851.20/x
  3. Step 3: Cross multiply
    408,070,851.20x = 572,508,515.20 × 408,070,851.20
  4. Step 4: Simplify right side
    408,070,851.20x = 233,624,037,116,912,160
  5. Step 5: Solve for x
    x = 233,624,037,116,912,160/408,070,851.20
  6. Step 6: Final answer
    x = 572,508,515.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.