Home / 28,341,876.60-42,519,561.45-9,172,633.65

Finding the Fourth Proportional to 28,341,876.60, 42,519,561.45 and 9,172,633.65

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Solution

The fourth proportional to 28,341,876.60, 42,519,561.45 and 9,172,633.65 is: 13,761,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,876.60 : 42,519,561.45 = 9,172,633.65 : x
  2. Step 2: Convert to fraction form
    28,341,876.60/42,519,561.45 = 9,172,633.65/x
  3. Step 3: Cross multiply
    28,341,876.60x = 42,519,561.45 × 9,172,633.65
  4. Step 4: Simplify right side
    28,341,876.60x = 390,016,360,289,791.69
  5. Step 5: Solve for x
    x = 390,016,360,289,791.69/28,341,876.60
  6. Step 6: Final answer
    x = 13,761,133.95

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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.