Home / 120,965,633.80-181,332,329.10-40,145,000.20

Finding the Fourth Proportional to 120,965,633.80, 181,332,329.10 and 40,145,000.20

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Solution

The fourth proportional to 120,965,633.80, 181,332,329.10 and 40,145,000.20 is: 60,178,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,633.80 : 181,332,329.10 = 40,145,000.20 : x
  2. Step 2: Convert to fraction form
    120,965,633.80/181,332,329.10 = 40,145,000.20/x
  3. Step 3: Cross multiply
    120,965,633.80x = 181,332,329.10 × 40,145,000.20
  4. Step 4: Simplify right side
    120,965,633.80x = 7,279,586,387,985,966
  5. Step 5: Solve for x
    x = 7,279,586,387,985,966/120,965,633.80
  6. Step 6: Final answer
    x = 60,178,962.89

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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.