Home / 13,561,085.20-20,341,627.80-8,175,816.40

Finding the Fourth Proportional to 13,561,085.20, 20,341,627.80 and 8,175,816.40

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Solution

The fourth proportional to 13,561,085.20, 20,341,627.80 and 8,175,816.40 is: 12,263,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561,085.20 : 20,341,627.80 = 8,175,816.40 : x
  2. Step 2: Convert to fraction form
    13,561,085.20/20,341,627.80 = 8,175,816.40/x
  3. Step 3: Cross multiply
    13,561,085.20x = 20,341,627.80 × 8,175,816.40
  4. Step 4: Simplify right side
    13,561,085.20x = 166,309,414,169,935.94
  5. Step 5: Solve for x
    x = 166,309,414,169,935.94/13,561,085.20
  6. Step 6: Final answer
    x = 12,263,724.60

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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.