Home / 72,515,754.13-108,776,631.01-21,397,773.55

Finding the Fourth Proportional to 72,515,754.13, 108,776,631.01 and 21,397,773.55

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Solution

The fourth proportional to 72,515,754.13, 108,776,631.01 and 21,397,773.55 is: 32,097,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,515,754.13 : 108,776,631.01 = 21,397,773.55 : x
  2. Step 2: Convert to fraction form
    72,515,754.13/108,776,631.01 = 21,397,773.55/x
  3. Step 3: Cross multiply
    72,515,754.13x = 108,776,631.01 × 21,397,773.55
  4. Step 4: Simplify right side
    72,515,754.13x = 2,327,577,717,286,510
  5. Step 5: Solve for x
    x = 2,327,577,717,286,510/72,515,754.13
  6. Step 6: Final answer
    x = 32,097,545.50

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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.