Home / 20,388,001.20-30,582,001.80-12,325,844.40

Finding the Fourth Proportional to 20,388,001.20, 30,582,001.80 and 12,325,844.40

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Solution

The fourth proportional to 20,388,001.20, 30,582,001.80 and 12,325,844.40 is: 18,488,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388,001.20 : 30,582,001.80 = 12,325,844.40 : x
  2. Step 2: Convert to fraction form
    20,388,001.20/30,582,001.80 = 12,325,844.40/x
  3. Step 3: Cross multiply
    20,388,001.20x = 30,582,001.80 × 12,325,844.40
  4. Step 4: Simplify right side
    20,388,001.20x = 376,948,995,627,319.94
  5. Step 5: Solve for x
    x = 376,948,995,627,319.94/20,388,001.20
  6. Step 6: Final answer
    x = 18,488,766.60

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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.