Home / 359,273,887.20-538,910,830.80-129,278,469.60

Finding the Fourth Proportional to 359,273,887.20, 538,910,830.80 and 129,278,469.60

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Solution

The fourth proportional to 359,273,887.20, 538,910,830.80 and 129,278,469.60 is: 193,917,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,273,887.20 : 538,910,830.80 = 129,278,469.60 : x
  2. Step 2: Convert to fraction form
    359,273,887.20/538,910,830.80 = 129,278,469.60/x
  3. Step 3: Cross multiply
    359,273,887.20x = 538,910,830.80 × 129,278,469.60
  4. Step 4: Simplify right side
    359,273,887.20x = 69,669,567,456,688,536
  5. Step 5: Solve for x
    x = 69,669,567,456,688,536/359,273,887.20
  6. Step 6: Final answer
    x = 193,917,704.40

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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.