Home / 20,804,691.73-28,712,635.65-11,984,447.83

Finding the Fourth Proportional to 20,804,691.73, 28,712,635.65 and 11,984,447.83

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Solution

The fourth proportional to 20,804,691.73, 28,712,635.65 and 11,984,447.83 is: 16,539,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,691.73 : 28,712,635.65 = 11,984,447.83 : x
  2. Step 2: Convert to fraction form
    20,804,691.73/28,712,635.65 = 11,984,447.83/x
  3. Step 3: Cross multiply
    20,804,691.73x = 28,712,635.65 × 11,984,447.83
  4. Step 4: Simplify right side
    20,804,691.73x = 344,105,084,009,223.12
  5. Step 5: Solve for x
    x = 344,105,084,009,223.12/20,804,691.73
  6. Step 6: Final answer
    x = 16,539,782.88

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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.