Home / 121,313,862.60-181,970,793.90-75,397,360.20

Finding the Fourth Proportional to 121,313,862.60, 181,970,793.90 and 75,397,360.20

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Solution

The fourth proportional to 121,313,862.60, 181,970,793.90 and 75,397,360.20 is: 113,096,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,313,862.60 : 181,970,793.90 = 75,397,360.20 : x
  2. Step 2: Convert to fraction form
    121,313,862.60/181,970,793.90 = 75,397,360.20/x
  3. Step 3: Cross multiply
    121,313,862.60x = 181,970,793.90 × 75,397,360.20
  4. Step 4: Simplify right side
    121,313,862.60x = 13,720,117,493,558,264
  5. Step 5: Solve for x
    x = 13,720,117,493,558,264/121,313,862.60
  6. Step 6: Final answer
    x = 113,096,040.30

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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.