Home / 120,154,647.61-165,816,674.13-67,951,489.78

Finding the Fourth Proportional to 120,154,647.61, 165,816,674.13 and 67,951,489.78

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Solution

The fourth proportional to 120,154,647.61, 165,816,674.13 and 67,951,489.78 is: 93,774,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,154,647.61 : 165,816,674.13 = 67,951,489.78 : x
  2. Step 2: Convert to fraction form
    120,154,647.61/165,816,674.13 = 67,951,489.78/x
  3. Step 3: Cross multiply
    120,154,647.61x = 165,816,674.13 × 67,951,489.78
  4. Step 4: Simplify right side
    120,154,647.61x = 11,267,490,037,960,374
  5. Step 5: Solve for x
    x = 11,267,490,037,960,374/120,154,647.61
  6. Step 6: Final answer
    x = 93,774,899.78

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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.