Home / 28,788,371.52-39,727,919.04-15,735,716.16

Finding the Fourth Proportional to 28,788,371.52, 39,727,919.04 and 15,735,716.16

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Solution

The fourth proportional to 28,788,371.52, 39,727,919.04 and 15,735,716.16 is: 21,715,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788,371.52 : 39,727,919.04 = 15,735,716.16 : x
  2. Step 2: Convert to fraction form
    28,788,371.52/39,727,919.04 = 15,735,716.16/x
  3. Step 3: Cross multiply
    28,788,371.52x = 39,727,919.04 × 15,735,716.16
  4. Step 4: Simplify right side
    28,788,371.52x = 625,147,257,640,899.62
  5. Step 5: Solve for x
    x = 625,147,257,640,899.62/28,788,371.52
  6. Step 6: Final answer
    x = 21,715,269.90

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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.