Home / 13,387,540.80-20,067,314.40-7,312,929.60

Finding the Fourth Proportional to 13,387,540.80, 20,067,314.40 and 7,312,929.60

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Solution

The fourth proportional to 13,387,540.80, 20,067,314.40 and 7,312,929.60 is: 10,961,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387,540.80 : 20,067,314.40 = 7,312,929.60 : x
  2. Step 2: Convert to fraction form
    13,387,540.80/20,067,314.40 = 7,312,929.60/x
  3. Step 3: Cross multiply
    13,387,540.80x = 20,067,314.40 × 7,312,929.60
  4. Step 4: Simplify right side
    13,387,540.80x = 146,750,857,468,266.22
  5. Step 5: Solve for x
    x = 146,750,857,468,266.22/13,387,540.80
  6. Step 6: Final answer
    x = 10,961,748.66

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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.