Home / 138,287,283.20-190,836,059.04-76,407,180.92

Finding the Fourth Proportional to 138,287,283.20, 190,836,059.04 and 76,407,180.92

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Solution

The fourth proportional to 138,287,283.20, 190,836,059.04 and 76,407,180.92 is: 105,441,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,287,283.20 : 190,836,059.04 = 76,407,180.92 : x
  2. Step 2: Convert to fraction form
    138,287,283.20/190,836,059.04 = 76,407,180.92/x
  3. Step 3: Cross multiply
    138,287,283.20x = 190,836,059.04 × 76,407,180.92
  4. Step 4: Simplify right side
    138,287,283.20x = 14,581,245,289,129,082
  5. Step 5: Solve for x
    x = 14,581,245,289,129,082/138,287,283.20
  6. Step 6: Final answer
    x = 105,441,693.20

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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.