Home / 425,360,154.43-638,045,311.97-118,633,605.31

Finding the Fourth Proportional to 425,360,154.43, 638,045,311.97 and 118,633,605.31

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Solution

The fourth proportional to 425,360,154.43, 638,045,311.97 and 118,633,605.31 is: 177,951,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,360,154.43 : 638,045,311.97 = 118,633,605.31 : x
  2. Step 2: Convert to fraction form
    425,360,154.43/638,045,311.97 = 118,633,605.31/x
  3. Step 3: Cross multiply
    425,360,154.43x = 638,045,311.97 × 118,633,605.31
  4. Step 4: Simplify right side
    425,360,154.43x = 75,693,615,708,846,272
  5. Step 5: Solve for x
    x = 75,693,615,708,846,272/425,360,154.43
  6. Step 6: Final answer
    x = 177,951,824.87

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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.