Home / 442,560,346.60-664,344,404.70-260,909,876.20

Finding the Fourth Proportional to 442,560,346.60, 664,344,404.70 and 260,909,876.20

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Solution

The fourth proportional to 442,560,346.60, 664,344,404.70 and 260,909,876.20 is: 391,661,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,560,346.60 : 664,344,404.70 = 260,909,876.20 : x
  2. Step 2: Convert to fraction form
    442,560,346.60/664,344,404.70 = 260,909,876.20/x
  3. Step 3: Cross multiply
    442,560,346.60x = 664,344,404.70 × 260,909,876.20
  4. Step 4: Simplify right side
    442,560,346.60x = 173,334,016,384,439,712
  5. Step 5: Solve for x
    x = 173,334,016,384,439,712/442,560,346.60
  6. Step 6: Final answer
    x = 391,661,877.79

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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.