Home / 120,129,648.02-165,791,270.31-73,090,060.97

Finding the Fourth Proportional to 120,129,648.02, 165,791,270.31 and 73,090,060.97

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Solution

The fourth proportional to 120,129,648.02, 165,791,270.31 and 73,090,060.97 is: 100,871,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,129,648.02 : 165,791,270.31 = 73,090,060.97 : x
  2. Step 2: Convert to fraction form
    120,129,648.02/165,791,270.31 = 73,090,060.97/x
  3. Step 3: Cross multiply
    120,129,648.02x = 165,791,270.31 × 73,090,060.97
  4. Step 4: Simplify right side
    120,129,648.02x = 12,117,694,055,251,650
  5. Step 5: Solve for x
    x = 12,117,694,055,251,650/120,129,648.02
  6. Step 6: Final answer
    x = 100,871,801.89

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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.