Home / 28,811,430.56-39,760,720.92-15,758,689.04

Finding the Fourth Proportional to 28,811,430.56, 39,760,720.92 and 15,758,689.04

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Solution

The fourth proportional to 28,811,430.56, 39,760,720.92 and 15,758,689.04 is: 21,747,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811,430.56 : 39,760,720.92 = 15,758,689.04 : x
  2. Step 2: Convert to fraction form
    28,811,430.56/39,760,720.92 = 15,758,689.04/x
  3. Step 3: Cross multiply
    28,811,430.56x = 39,760,720.92 × 15,758,689.04
  4. Step 4: Simplify right side
    28,811,430.56x = 626,576,836,984,502.75
  5. Step 5: Solve for x
    x = 626,576,836,984,502.75/28,811,430.56
  6. Step 6: Final answer
    x = 21,747,508.71

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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.