Home / 21,581,777.20-29,781,966.27-11,792,557.42

Finding the Fourth Proportional to 21,581,777.20, 29,781,966.27 and 11,792,557.42

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Solution

The fourth proportional to 21,581,777.20, 29,781,966.27 and 11,792,557.42 is: 16,273,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,777.20 : 29,781,966.27 = 11,792,557.42 : x
  2. Step 2: Convert to fraction form
    21,581,777.20/29,781,966.27 = 11,792,557.42/x
  3. Step 3: Cross multiply
    21,581,777.20x = 29,781,966.27 × 11,792,557.42
  4. Step 4: Simplify right side
    21,581,777.20x = 351,205,547,319,478.19
  5. Step 5: Solve for x
    x = 351,205,547,319,478.19/21,581,777.20
  6. Step 6: Final answer
    x = 16,273,244.97

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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.