Home / 28,539,629.60-39,384,794.90-15,486,891.22

Finding the Fourth Proportional to 28,539,629.60, 39,384,794.90 and 15,486,891.22

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Solution

The fourth proportional to 28,539,629.60, 39,384,794.90 and 15,486,891.22 is: 21,371,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,629.60 : 39,384,794.90 = 15,486,891.22 : x
  2. Step 2: Convert to fraction form
    28,539,629.60/39,384,794.90 = 15,486,891.22/x
  3. Step 3: Cross multiply
    28,539,629.60x = 39,384,794.90 × 15,486,891.22
  4. Step 4: Simplify right side
    28,539,629.60x = 609,948,034,338,310.75
  5. Step 5: Solve for x
    x = 609,948,034,338,310.75/28,539,629.60
  6. Step 6: Final answer
    x = 21,371,967.43

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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.