Home / 748,930,691.60-1,122,948,139.80-386,133,635.60

Finding the Fourth Proportional to 748,930,691.60, 1,122,948,139.80 and 386,133,635.60

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Solution

The fourth proportional to 748,930,691.60, 1,122,948,139.80 and 386,133,635.60 is: 578,969,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,930,691.60 : 1,122,948,139.80 = 386,133,635.60 : x
  2. Step 2: Convert to fraction form
    748,930,691.60/1,122,948,139.80 = 386,133,635.60/x
  3. Step 3: Cross multiply
    748,930,691.60x = 1,122,948,139.80 × 386,133,635.60
  4. Step 4: Simplify right side
    748,930,691.60x = 433,608,047,811,231,040
  5. Step 5: Solve for x
    x = 433,608,047,811,231,040/748,930,691.60
  6. Step 6: Final answer
    x = 578,969,526.39

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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.