Home / 81,999,815.07-123,045,122.67-49,129,607.97

Finding the Fourth Proportional to 81,999,815.07, 123,045,122.67 and 49,129,607.97

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Solution

The fourth proportional to 81,999,815.07, 123,045,122.67 and 49,129,607.97 is: 73,721,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999,815.07 : 123,045,122.67 = 49,129,607.97 : x
  2. Step 2: Convert to fraction form
    81,999,815.07/123,045,122.67 = 49,129,607.97/x
  3. Step 3: Cross multiply
    81,999,815.07x = 123,045,122.67 × 49,129,607.97
  4. Step 4: Simplify right side
    81,999,815.07x = 6,045,158,639,397,660
  5. Step 5: Solve for x
    x = 6,045,158,639,397,660/81,999,815.07
  6. Step 6: Final answer
    x = 73,721,613.08

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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.