Home / 21,387,844.40-32,081,766.60-20,632,017.20

Finding the Fourth Proportional to 21,387,844.40, 32,081,766.60 and 20,632,017.20

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Solution

The fourth proportional to 21,387,844.40, 32,081,766.60 and 20,632,017.20 is: 30,948,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,844.40 : 32,081,766.60 = 20,632,017.20 : x
  2. Step 2: Convert to fraction form
    21,387,844.40/32,081,766.60 = 20,632,017.20/x
  3. Step 3: Cross multiply
    21,387,844.40x = 32,081,766.60 × 20,632,017.20
  4. Step 4: Simplify right side
    21,387,844.40x = 661,911,560,297,585.50
  5. Step 5: Solve for x
    x = 661,911,560,297,585.50/21,387,844.40
  6. Step 6: Final answer
    x = 30,948,025.80

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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.