Home / 28,471,431-39,290,516.46-15,418,686

Finding the Fourth Proportional to 28,471,431, 39,290,516.46 and 15,418,686

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Solution

The fourth proportional to 28,471,431, 39,290,516.46 and 15,418,686 is: 21,277,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,431 : 39,290,516.46 = 15,418,686 : x
  2. Step 2: Convert to fraction form
    28,471,431/39,290,516.46 = 15,418,686/x
  3. Step 3: Cross multiply
    28,471,431x = 39,290,516.46 × 15,418,686
  4. Step 4: Simplify right side
    28,471,431x = 605,808,136,074,571.62
  5. Step 5: Solve for x
    x = 605,808,136,074,571.62/28,471,431
  6. Step 6: Final answer
    x = 21,277,755.10

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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.