Home / 78,181,098.35-107,895,027.17-45,142,739.98

Finding the Fourth Proportional to 78,181,098.35, 107,895,027.17 and 45,142,739.98

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Solution

The fourth proportional to 78,181,098.35, 107,895,027.17 and 45,142,739.98 is: 62,299,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181,098.35 : 107,895,027.17 = 45,142,739.98 : x
  2. Step 2: Convert to fraction form
    78,181,098.35/107,895,027.17 = 45,142,739.98/x
  3. Step 3: Cross multiply
    78,181,098.35x = 107,895,027.17 × 45,142,739.98
  4. Step 4: Simplify right side
    78,181,098.35x = 4,870,677,156,513,464
  5. Step 5: Solve for x
    x = 4,870,677,156,513,464/78,181,098.35
  6. Step 6: Final answer
    x = 62,299,932.59

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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.