Home / 392,021,488.59-588,028,246.90-100,887,479.97

Finding the Fourth Proportional to 392,021,488.59, 588,028,246.90 and 100,887,479.97

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Solution

The fourth proportional to 392,021,488.59, 588,028,246.90 and 100,887,479.97 is: 151,330,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,021,488.59 : 588,028,246.90 = 100,887,479.97 : x
  2. Step 2: Convert to fraction form
    392,021,488.59/588,028,246.90 = 100,887,479.97/x
  3. Step 3: Cross multiply
    392,021,488.59x = 588,028,246.90 × 100,887,479.97
  4. Step 4: Simplify right side
    392,021,488.59x = 59,324,687,980,917,960
  5. Step 5: Solve for x
    x = 59,324,687,980,917,960/392,021,488.59
  6. Step 6: Final answer
    x = 151,330,194.15

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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.