Home / 151,687,871.58-209,327,772.51-82,071,724.98

Finding the Fourth Proportional to 151,687,871.58, 209,327,772.51 and 82,071,724.98

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Solution

The fourth proportional to 151,687,871.58, 209,327,772.51 and 82,071,724.98 is: 113,258,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687,871.58 : 209,327,772.51 = 82,071,724.98 : x
  2. Step 2: Convert to fraction form
    151,687,871.58/209,327,772.51 = 82,071,724.98/x
  3. Step 3: Cross multiply
    151,687,871.58x = 209,327,772.51 × 82,071,724.98
  4. Step 4: Simplify right side
    151,687,871.58x = 17,179,891,376,116,724
  5. Step 5: Solve for x
    x = 17,179,891,376,116,724/151,687,871.58
  6. Step 6: Final answer
    x = 113,258,174.15

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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.