Home / 138,287,670.18-190,836,593.10-76,407,567.90

Finding the Fourth Proportional to 138,287,670.18, 190,836,593.10 and 76,407,567.90

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Solution

The fourth proportional to 138,287,670.18, 190,836,593.10 and 76,407,567.90 is: 105,442,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,287,670.18 : 190,836,593.10 = 76,407,567.90 : x
  2. Step 2: Convert to fraction form
    138,287,670.18/190,836,593.10 = 76,407,567.90/x
  3. Step 3: Cross multiply
    138,287,670.18x = 190,836,593.10 × 76,407,567.90
  4. Step 4: Simplify right side
    138,287,670.18x = 14,581,359,945,092,922
  5. Step 5: Solve for x
    x = 14,581,359,945,092,922/138,287,670.18
  6. Step 6: Final answer
    x = 105,442,227.25

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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.