Home / 28,341,891.70-42,519,584.10-9,172,648.74

Finding the Fourth Proportional to 28,341,891.70, 42,519,584.10 and 9,172,648.74

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Solution

The fourth proportional to 28,341,891.70, 42,519,584.10 and 9,172,648.74 is: 13,761,156.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,891.70 : 42,519,584.10 = 9,172,648.74 : x
  2. Step 2: Convert to fraction form
    28,341,891.70/42,519,584.10 = 9,172,648.74/x
  3. Step 3: Cross multiply
    28,341,891.70x = 42,519,584.10 × 9,172,648.74
  4. Step 4: Simplify right side
    28,341,891.70x = 390,017,209,714,034.88
  5. Step 5: Solve for x
    x = 390,017,209,714,034.88/28,341,891.70
  6. Step 6: Final answer
    x = 13,761,156.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.