Home / 260,693,171.40-391,039,757.10-139,760,819.40

Finding the Fourth Proportional to 260,693,171.40, 391,039,757.10 and 139,760,819.40

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Solution

The fourth proportional to 260,693,171.40, 391,039,757.10 and 139,760,819.40 is: 209,641,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,693,171.40 : 391,039,757.10 = 139,760,819.40 : x
  2. Step 2: Convert to fraction form
    260,693,171.40/391,039,757.10 = 139,760,819.40/x
  3. Step 3: Cross multiply
    260,693,171.40x = 391,039,757.10 × 139,760,819.40
  4. Step 4: Simplify right side
    260,693,171.40x = 54,652,036,870,272,976
  5. Step 5: Solve for x
    x = 54,652,036,870,272,976/260,693,171.40
  6. Step 6: Final answer
    x = 209,641,229.10

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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.