Home / 272,448,002.70-408,672,004.05-129,120,770.70

Finding the Fourth Proportional to 272,448,002.70, 408,672,004.05 and 129,120,770.70

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Solution

The fourth proportional to 272,448,002.70, 408,672,004.05 and 129,120,770.70 is: 193,681,156.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,448,002.70 : 408,672,004.05 = 129,120,770.70 : x
  2. Step 2: Convert to fraction form
    272,448,002.70/408,672,004.05 = 129,120,770.70/x
  3. Step 3: Cross multiply
    272,448,002.70x = 408,672,004.05 × 129,120,770.70
  4. Step 4: Simplify right side
    272,448,002.70x = 52,768,044,126,449,528
  5. Step 5: Solve for x
    x = 52,768,044,126,449,528/272,448,002.70
  6. Step 6: Final answer
    x = 193,681,156.05

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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.