Home / 138,287,694.32-190,836,626.40-76,407,592.04

Finding the Fourth Proportional to 138,287,694.32, 190,836,626.40 and 76,407,592.04

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Solution

The fourth proportional to 138,287,694.32, 190,836,626.40 and 76,407,592.04 is: 105,442,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,287,694.32 : 190,836,626.40 = 76,407,592.04 : x
  2. Step 2: Convert to fraction form
    138,287,694.32/190,836,626.40 = 76,407,592.04/x
  3. Step 3: Cross multiply
    138,287,694.32x = 190,836,626.40 × 76,407,592.04
  4. Step 4: Simplify right side
    138,287,694.32x = 14,581,367,096,261,096
  5. Step 5: Solve for x
    x = 14,581,367,096,261,096/138,287,694.32
  6. Step 6: Final answer
    x = 105,442,260.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.