Home / 193,428,005.80-290,142,008.70-132,206,002.60

Finding the Fourth Proportional to 193,428,005.80, 290,142,008.70 and 132,206,002.60

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Solution

The fourth proportional to 193,428,005.80, 290,142,008.70 and 132,206,002.60 is: 198,309,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,428,005.80 : 290,142,008.70 = 132,206,002.60 : x
  2. Step 2: Convert to fraction form
    193,428,005.80/290,142,008.70 = 132,206,002.60/x
  3. Step 3: Cross multiply
    193,428,005.80x = 290,142,008.70 × 132,206,002.60
  4. Step 4: Simplify right side
    193,428,005.80x = 38,358,515,156,561,416
  5. Step 5: Solve for x
    x = 38,358,515,156,561,416/193,428,005.80
  6. Step 6: Final answer
    x = 198,309,003.90

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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.