Home / 12,312,031.20-18,468,046.80-10,398,843.60

Finding the Fourth Proportional to 12,312,031.20, 18,468,046.80 and 10,398,843.60

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Solution

The fourth proportional to 12,312,031.20, 18,468,046.80 and 10,398,843.60 is: 15,598,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,031.20 : 18,468,046.80 = 10,398,843.60 : x
  2. Step 2: Convert to fraction form
    12,312,031.20/18,468,046.80 = 10,398,843.60/x
  3. Step 3: Cross multiply
    12,312,031.20x = 18,468,046.80 × 10,398,843.60
  4. Step 4: Simplify right side
    12,312,031.20x = 192,046,330,270,680.47
  5. Step 5: Solve for x
    x = 192,046,330,270,680.47/12,312,031.20
  6. Step 6: Final answer
    x = 15,598,265.40

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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.