Home / 120,419,042.76-180,613,156.01-38,531,070.54

Finding the Fourth Proportional to 120,419,042.76, 180,613,156.01 and 38,531,070.54

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Solution

The fourth proportional to 120,419,042.76, 180,613,156.01 and 38,531,070.54 is: 57,791,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,419,042.76 : 180,613,156.01 = 38,531,070.54 : x
  2. Step 2: Convert to fraction form
    120,419,042.76/180,613,156.01 = 38,531,070.54/x
  3. Step 3: Cross multiply
    120,419,042.76x = 180,613,156.01 × 38,531,070.54
  4. Step 4: Simplify right side
    120,419,042.76x = 6,959,218,254,480,679
  5. Step 5: Solve for x
    x = 6,959,218,254,480,679/120,419,042.76
  6. Step 6: Final answer
    x = 57,791,675.59

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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.