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Finding the Fourth Proportional to 557,539,613.80, 836,309,420.70 and 339,861,380.20

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Solution

The fourth proportional to 557,539,613.80, 836,309,420.70 and 339,861,380.20 is: 509,792,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,539,613.80 : 836,309,420.70 = 339,861,380.20 : x
  2. Step 2: Convert to fraction form
    557,539,613.80/836,309,420.70 = 339,861,380.20/x
  3. Step 3: Cross multiply
    557,539,613.80x = 836,309,420.70 × 339,861,380.20
  4. Step 4: Simplify right side
    557,539,613.80x = 284,229,273,993,364,448
  5. Step 5: Solve for x
    x = 284,229,273,993,364,448/557,539,613.80
  6. Step 6: Final answer
    x = 509,792,070.30

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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.