Home / 123,722,979.41-170,718,731.79-71,501,930.84

Finding the Fourth Proportional to 123,722,979.41, 170,718,731.79 and 71,501,930.84

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Solution

The fourth proportional to 123,722,979.41, 170,718,731.79 and 71,501,930.84 is: 98,661,695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,722,979.41 : 170,718,731.79 = 71,501,930.84 : x
  2. Step 2: Convert to fraction form
    123,722,979.41/170,718,731.79 = 71,501,930.84/x
  3. Step 3: Cross multiply
    123,722,979.41x = 170,718,731.79 × 71,501,930.84
  4. Step 4: Simplify right side
    123,722,979.41x = 12,206,718,953,541,090
  5. Step 5: Solve for x
    x = 12,206,718,953,541,090/123,722,979.41
  6. Step 6: Final answer
    x = 98,661,695.76

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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.