Home / 21,387,120.40-32,080,680.60-13,324,963.60

Finding the Fourth Proportional to 21,387,120.40, 32,080,680.60 and 13,324,963.60

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Solution

The fourth proportional to 21,387,120.40, 32,080,680.60 and 13,324,963.60 is: 19,987,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,120.40 : 32,080,680.60 = 13,324,963.60 : x
  2. Step 2: Convert to fraction form
    21,387,120.40/32,080,680.60 = 13,324,963.60/x
  3. Step 3: Cross multiply
    21,387,120.40x = 32,080,680.60 × 13,324,963.60
  4. Step 4: Simplify right side
    21,387,120.40x = 427,473,901,258,226.19
  5. Step 5: Solve for x
    x = 427,473,901,258,226.19/21,387,120.40
  6. Step 6: Final answer
    x = 19,987,445.40

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1.5x scale

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.