Home / 121,180,201.20-181,770,301.80-39,298,921.20

Finding the Fourth Proportional to 121,180,201.20, 181,770,301.80 and 39,298,921.20

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Solution

The fourth proportional to 121,180,201.20, 181,770,301.80 and 39,298,921.20 is: 58,948,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180,201.20 : 181,770,301.80 = 39,298,921.20 : x
  2. Step 2: Convert to fraction form
    121,180,201.20/181,770,301.80 = 39,298,921.20/x
  3. Step 3: Cross multiply
    121,180,201.20x = 181,770,301.80 × 39,298,921.20
  4. Step 4: Simplify right side
    121,180,201.20x = 7,143,376,766,938,419
  5. Step 5: Solve for x
    x = 7,143,376,766,938,419/121,180,201.20
  6. Step 6: Final answer
    x = 58,948,381.80

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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.