Home / 87,695,999.10-131,543,998.65-42,262,386.30

Finding the Fourth Proportional to 87,695,999.10, 131,543,998.65 and 42,262,386.30

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Solution

The fourth proportional to 87,695,999.10, 131,543,998.65 and 42,262,386.30 is: 63,393,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695,999.10 : 131,543,998.65 = 42,262,386.30 : x
  2. Step 2: Convert to fraction form
    87,695,999.10/131,543,998.65 = 42,262,386.30/x
  3. Step 3: Cross multiply
    87,695,999.10x = 131,543,998.65 × 42,262,386.30
  4. Step 4: Simplify right side
    87,695,999.10x = 5,559,363,286,392,978
  5. Step 5: Solve for x
    x = 5,559,363,286,392,978/87,695,999.10
  6. Step 6: Final answer
    x = 63,393,579.45

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Similar ratio
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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.