Home / 87,610,610.94-120,918,817.08-56,287,815.90

Finding the Fourth Proportional to 87,610,610.94, 120,918,817.08 and 56,287,815.90

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Solution

The fourth proportional to 87,610,610.94, 120,918,817.08 and 56,287,815.90 is: 77,687,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610,610.94 : 120,918,817.08 = 56,287,815.90 : x
  2. Step 2: Convert to fraction form
    87,610,610.94/120,918,817.08 = 56,287,815.90/x
  3. Step 3: Cross multiply
    87,610,610.94x = 120,918,817.08 × 56,287,815.90
  4. Step 4: Simplify right side
    87,610,610.94x = 6,806,256,114,644,815
  5. Step 5: Solve for x
    x = 6,806,256,114,644,815/87,610,610.94
  6. Step 6: Final answer
    x = 77,687,577.36

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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.