Home / 638,498,102.28-957,287,498.47-392,346,173.31

Finding the Fourth Proportional to 638,498,102.28, 957,287,498.47 and 392,346,173.31

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Solution

The fourth proportional to 638,498,102.28, 957,287,498.47 and 392,346,173.31 is: 588,236,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,498,102.28 : 957,287,498.47 = 392,346,173.31 : x
  2. Step 2: Convert to fraction form
    638,498,102.28/957,287,498.47 = 392,346,173.31/x
  3. Step 3: Cross multiply
    638,498,102.28x = 957,287,498.47 × 392,346,173.31
  4. Step 4: Simplify right side
    638,498,102.28x = 375,588,086,781,226,112
  5. Step 5: Solve for x
    x = 375,588,086,781,226,112/638,498,102.28
  6. Step 6: Final answer
    x = 588,236,809.85

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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.