Home / 15,491,200.80-23,236,801.20-11,915,018.40

Finding the Fourth Proportional to 15,491,200.80, 23,236,801.20 and 11,915,018.40

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Solution

The fourth proportional to 15,491,200.80, 23,236,801.20 and 11,915,018.40 is: 17,872,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491,200.80 : 23,236,801.20 = 11,915,018.40 : x
  2. Step 2: Convert to fraction form
    15,491,200.80/23,236,801.20 = 11,915,018.40/x
  3. Step 3: Cross multiply
    15,491,200.80x = 23,236,801.20 × 11,915,018.40
  4. Step 4: Simplify right side
    15,491,200.80x = 276,866,913,855,142.09
  5. Step 5: Solve for x
    x = 276,866,913,855,142.09/15,491,200.80
  6. Step 6: Final answer
    x = 17,872,527.60

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Similar ratio
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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.