Home / 87,610,609.94-120,918,815.70-56,287,814.90

Finding the Fourth Proportional to 87,610,609.94, 120,918,815.70 and 56,287,814.90

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Solution

The fourth proportional to 87,610,609.94, 120,918,815.70 and 56,287,814.90 is: 77,687,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610,609.94 : 120,918,815.70 = 56,287,814.90 : x
  2. Step 2: Convert to fraction form
    87,610,609.94/120,918,815.70 = 56,287,814.90/x
  3. Step 3: Cross multiply
    87,610,609.94x = 120,918,815.70 × 56,287,814.90
  4. Step 4: Simplify right side
    87,610,609.94x = 6,806,255,916,048,814
  5. Step 5: Solve for x
    x = 6,806,255,916,048,814/87,610,609.94
  6. Step 6: Final answer
    x = 77,687,575.98

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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.