Home / 151,687,872.08-209,327,773.20-82,071,725.48

Finding the Fourth Proportional to 151,687,872.08, 209,327,773.20 and 82,071,725.48

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Solution

The fourth proportional to 151,687,872.08, 209,327,773.20 and 82,071,725.48 is: 113,258,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687,872.08 : 209,327,773.20 = 82,071,725.48 : x
  2. Step 2: Convert to fraction form
    151,687,872.08/209,327,773.20 = 82,071,725.48/x
  3. Step 3: Cross multiply
    151,687,872.08x = 209,327,773.20 × 82,071,725.48
  4. Step 4: Simplify right side
    151,687,872.08x = 17,179,891,537,410,102
  5. Step 5: Solve for x
    x = 17,179,891,537,410,102/151,687,872.08
  6. Step 6: Final answer
    x = 113,258,174.84

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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.