Home / 521,589,200.40-781,488,005.40-275,581,443.60

Finding the Fourth Proportional to 521,589,200.40, 781,488,005.40 and 275,581,443.60

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Solution

The fourth proportional to 521,589,200.40, 781,488,005.40 and 275,581,443.60 is: 412,898,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,589,200.40 : 781,488,005.40 = 275,581,443.60 : x
  2. Step 2: Convert to fraction form
    521,589,200.40/781,488,005.40 = 275,581,443.60/x
  3. Step 3: Cross multiply
    521,589,200.40x = 781,488,005.40 × 275,581,443.60
  4. Step 4: Simplify right side
    521,589,200.40x = 215,363,592,684,216,608
  5. Step 5: Solve for x
    x = 215,363,592,684,216,608/521,589,200.40
  6. Step 6: Final answer
    x = 412,898,872.37

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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.