Home / 432,309,421.38-648,503,996.30-141,178,069.97

Finding the Fourth Proportional to 432,309,421.38, 648,503,996.30 and 141,178,069.97

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Solution

The fourth proportional to 432,309,421.38, 648,503,996.30 and 141,178,069.97 is: 211,780,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,309,421.38 : 648,503,996.30 = 141,178,069.97 : x
  2. Step 2: Convert to fraction form
    432,309,421.38/648,503,996.30 = 141,178,069.97/x
  3. Step 3: Cross multiply
    432,309,421.38x = 648,503,996.30 × 141,178,069.97
  4. Step 4: Simplify right side
    432,309,421.38x = 91,554,542,561,517,600
  5. Step 5: Solve for x
    x = 91,554,542,561,517,600/432,309,421.38
  6. Step 6: Final answer
    x = 211,780,123.30

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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.