Home / 12,097,153.20-18,145,729.80-6,995,319.60

Finding the Fourth Proportional to 12,097,153.20, 18,145,729.80 and 6,995,319.60

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Solution

The fourth proportional to 12,097,153.20, 18,145,729.80 and 6,995,319.60 is: 10,492,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,153.20 : 18,145,729.80 = 6,995,319.60 : x
  2. Step 2: Convert to fraction form
    12,097,153.20/18,145,729.80 = 6,995,319.60/x
  3. Step 3: Cross multiply
    12,097,153.20x = 18,145,729.80 × 6,995,319.60
  4. Step 4: Simplify right side
    12,097,153.20x = 126,935,179,326,244.08
  5. Step 5: Solve for x
    x = 126,935,179,326,244.08/12,097,153.20
  6. Step 6: Final answer
    x = 10,492,979.40

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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.