Home / 120,673,802.70-181,010,704.05-72,300,861.90

Finding the Fourth Proportional to 120,673,802.70, 181,010,704.05 and 72,300,861.90

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Solution

The fourth proportional to 120,673,802.70, 181,010,704.05 and 72,300,861.90 is: 108,451,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,673,802.70 : 181,010,704.05 = 72,300,861.90 : x
  2. Step 2: Convert to fraction form
    120,673,802.70/181,010,704.05 = 72,300,861.90/x
  3. Step 3: Cross multiply
    120,673,802.70x = 181,010,704.05 × 72,300,861.90
  4. Step 4: Simplify right side
    120,673,802.70x = 13,087,229,915,940,822
  5. Step 5: Solve for x
    x = 13,087,229,915,940,822/120,673,802.70
  6. Step 6: Final answer
    x = 108,451,292.85

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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.