Home / 28,790,131.16-39,730,382.88-15,737,441.78

Finding the Fourth Proportional to 28,790,131.16, 39,730,382.88 and 15,737,441.78

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Solution

The fourth proportional to 28,790,131.16, 39,730,382.88 and 15,737,441.78 is: 21,717,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790,131.16 : 39,730,382.88 = 15,737,441.78 : x
  2. Step 2: Convert to fraction form
    28,790,131.16/39,730,382.88 = 15,737,441.78/x
  3. Step 3: Cross multiply
    28,790,131.16x = 39,730,382.88 × 15,737,441.78
  4. Step 4: Simplify right side
    28,790,131.16x = 625,254,587,471,108.75
  5. Step 5: Solve for x
    x = 625,254,587,471,108.75/28,790,131.16
  6. Step 6: Final answer
    x = 21,717,670.68

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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.