Home / 149,420,592.90-206,122,001.13-121,574,445.30

Finding the Fourth Proportional to 149,420,592.90, 206,122,001.13 and 121,574,445.30

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Solution

The fourth proportional to 149,420,592.90, 206,122,001.13 and 121,574,445.30 is: 167,708,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,420,592.90 : 206,122,001.13 = 121,574,445.30 : x
  2. Step 2: Convert to fraction form
    149,420,592.90/206,122,001.13 = 121,574,445.30/x
  3. Step 3: Cross multiply
    149,420,592.90x = 206,122,001.13 × 121,574,445.30
  4. Step 4: Simplify right side
    149,420,592.90x = 25,059,167,951,505,720
  5. Step 5: Solve for x
    x = 25,059,167,951,505,720/149,420,592.90
  6. Step 6: Final answer
    x = 167,708,931.31

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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.