Home / 151,687,873.46-209,327,775.10-82,071,726.86

Finding the Fourth Proportional to 151,687,873.46, 209,327,775.10 and 82,071,726.86

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Solution

The fourth proportional to 151,687,873.46, 209,327,775.10 and 82,071,726.86 is: 113,258,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687,873.46 : 209,327,775.10 = 82,071,726.86 : x
  2. Step 2: Convert to fraction form
    151,687,873.46/209,327,775.10 = 82,071,726.86/x
  3. Step 3: Cross multiply
    151,687,873.46x = 209,327,775.10 × 82,071,726.86
  4. Step 4: Simplify right side
    151,687,873.46x = 17,179,891,980,761,712
  5. Step 5: Solve for x
    x = 17,179,891,980,761,712/151,687,873.46
  6. Step 6: Final answer
    x = 113,258,176.74

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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.