Home / 15,858,751.92-21,895,607.16-12,181,092.72

Finding the Fourth Proportional to 15,858,751.92, 21,895,607.16 and 12,181,092.72

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Solution

The fourth proportional to 15,858,751.92, 21,895,607.16 and 12,181,092.72 is: 16,817,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858,751.92 : 21,895,607.16 = 12,181,092.72 : x
  2. Step 2: Convert to fraction form
    15,858,751.92/21,895,607.16 = 12,181,092.72/x
  3. Step 3: Cross multiply
    15,858,751.92x = 21,895,607.16 × 12,181,092.72
  4. Step 4: Simplify right side
    15,858,751.92x = 266,712,420,976,655.91
  5. Step 5: Solve for x
    x = 266,712,420,976,655.91/15,858,751.92
  6. Step 6: Final answer
    x = 16,817,995.66

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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.