Home / 265,721,311.20-398,581,966.80-74,245,087.20

Finding the Fourth Proportional to 265,721,311.20, 398,581,966.80 and 74,245,087.20

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Solution

The fourth proportional to 265,721,311.20, 398,581,966.80 and 74,245,087.20 is: 111,367,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,721,311.20 : 398,581,966.80 = 74,245,087.20 : x
  2. Step 2: Convert to fraction form
    265,721,311.20/398,581,966.80 = 74,245,087.20/x
  3. Step 3: Cross multiply
    265,721,311.20x = 398,581,966.80 × 74,245,087.20
  4. Step 4: Simplify right side
    265,721,311.20x = 29,592,752,881,413,508
  5. Step 5: Solve for x
    x = 29,592,752,881,413,508/265,721,311.20
  6. Step 6: Final answer
    x = 111,367,630.80

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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.