Home / 82,372,292.20-123,558,438.30-67,066,791.40

Finding the Fourth Proportional to 82,372,292.20, 123,558,438.30 and 67,066,791.40

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Solution

The fourth proportional to 82,372,292.20, 123,558,438.30 and 67,066,791.40 is: 100,600,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,372,292.20 : 123,558,438.30 = 67,066,791.40 : x
  2. Step 2: Convert to fraction form
    82,372,292.20/123,558,438.30 = 67,066,791.40/x
  3. Step 3: Cross multiply
    82,372,292.20x = 123,558,438.30 × 67,066,791.40
  4. Step 4: Simplify right side
    82,372,292.20x = 8,286,668,007,175,870
  5. Step 5: Solve for x
    x = 8,286,668,007,175,870/82,372,292.20
  6. Step 6: Final answer
    x = 100,600,187.10

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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.