Home / 82,654,787.93-123,982,436.85-20,406,109.43

Finding the Fourth Proportional to 82,654,787.93, 123,982,436.85 and 20,406,109.43

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Solution

The fourth proportional to 82,654,787.93, 123,982,436.85 and 20,406,109.43 is: 30,609,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,654,787.93 : 123,982,436.85 = 20,406,109.43 : x
  2. Step 2: Convert to fraction form
    82,654,787.93/123,982,436.85 = 20,406,109.43/x
  3. Step 3: Cross multiply
    82,654,787.93x = 123,982,436.85 × 20,406,109.43
  4. Step 4: Simplify right side
    82,654,787.93x = 2,529,999,173,139,252.50
  5. Step 5: Solve for x
    x = 2,529,999,173,139,252.50/82,654,787.93
  6. Step 6: Final answer
    x = 30,609,227.08

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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.