Home / 28,471,292.30-39,290,178-15,418,248.41

Finding the Fourth Proportional to 28,471,292.30, 39,290,178 and 15,418,248.41

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Solution

The fourth proportional to 28,471,292.30, 39,290,178 and 15,418,248.41 is: 21,277,071.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,292.30 : 39,290,178 = 15,418,248.41 : x
  2. Step 2: Convert to fraction form
    28,471,292.30/39,290,178 = 15,418,248.41/x
  3. Step 3: Cross multiply
    28,471,292.30x = 39,290,178 × 15,418,248.41
  4. Step 4: Simplify right side
    28,471,292.30x = 605,785,724,378,891.50
  5. Step 5: Solve for x
    x = 605,785,724,378,891.50/28,471,292.30
  6. Step 6: Final answer
    x = 21,277,071.59

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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.