Home / 120,154,628.10-165,816,647.22-67,951,470.30

Finding the Fourth Proportional to 120,154,628.10, 165,816,647.22 and 67,951,470.30

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Solution

The fourth proportional to 120,154,628.10, 165,816,647.22 and 67,951,470.30 is: 93,774,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,154,628.10 : 165,816,647.22 = 67,951,470.30 : x
  2. Step 2: Convert to fraction form
    120,154,628.10/165,816,647.22 = 67,951,470.30/x
  3. Step 3: Cross multiply
    120,154,628.10x = 165,816,647.22 × 67,951,470.30
  4. Step 4: Simplify right side
    120,154,628.10x = 11,267,484,978,815,406
  5. Step 5: Solve for x
    x = 11,267,484,978,815,406/120,154,628.10
  6. Step 6: Final answer
    x = 93,774,872.90

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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.