Home / 28,540,995.30-39,386,573.78-15,488,254.20

Finding the Fourth Proportional to 28,540,995.30, 39,386,573.78 and 15,488,254.20

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Solution

The fourth proportional to 28,540,995.30, 39,386,573.78 and 15,488,254.20 is: 21,373,790.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540,995.30 : 39,386,573.78 = 15,488,254.20 : x
  2. Step 2: Convert to fraction form
    28,540,995.30/39,386,573.78 = 15,488,254.20/x
  3. Step 3: Cross multiply
    28,540,995.30x = 39,386,573.78 × 15,488,254.20
  4. Step 4: Simplify right side
    28,540,995.30x = 610,029,266,497,320.75
  5. Step 5: Solve for x
    x = 610,029,266,497,320.75/28,540,995.30
  6. Step 6: Final answer
    x = 21,373,790.93

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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.