Home / 15,661,087.95-21,612,036.18-8,785,422.39

Finding the Fourth Proportional to 15,661,087.95, 21,612,036.18 and 8,785,422.39

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Solution

The fourth proportional to 15,661,087.95, 21,612,036.18 and 8,785,422.39 is: 12,123,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661,087.95 : 21,612,036.18 = 8,785,422.39 : x
  2. Step 2: Convert to fraction form
    15,661,087.95/21,612,036.18 = 8,785,422.39/x
  3. Step 3: Cross multiply
    15,661,087.95x = 21,612,036.18 × 8,785,422.39
  4. Step 4: Simplify right side
    15,661,087.95x = 189,870,866,549,262.09
  5. Step 5: Solve for x
    x = 189,870,866,549,262.09/15,661,087.95
  6. Step 6: Final answer
    x = 12,123,734.13

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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.