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Finding the Fourth Proportional to 123,739,695.90, 185,609,543.85 and 55,715,247.90

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Solution

The fourth proportional to 123,739,695.90, 185,609,543.85 and 55,715,247.90 is: 83,572,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,739,695.90 : 185,609,543.85 = 55,715,247.90 : x
  2. Step 2: Convert to fraction form
    123,739,695.90/185,609,543.85 = 55,715,247.90/x
  3. Step 3: Cross multiply
    123,739,695.90x = 185,609,543.85 × 55,715,247.90
  4. Step 4: Simplify right side
    123,739,695.90x = 10,341,281,748,208,670
  5. Step 5: Solve for x
    x = 10,341,281,748,208,670/123,739,695.90
  6. Step 6: Final answer
    x = 83,572,871.85

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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.