Home / 12,061,207.20-18,091,810.80-5,326,154.40

Finding the Fourth Proportional to 12,061,207.20, 18,091,810.80 and 5,326,154.40

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Solution

The fourth proportional to 12,061,207.20, 18,091,810.80 and 5,326,154.40 is: 7,989,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,061,207.20 : 18,091,810.80 = 5,326,154.40 : x
  2. Step 2: Convert to fraction form
    12,061,207.20/18,091,810.80 = 5,326,154.40/x
  3. Step 3: Cross multiply
    12,061,207.20x = 18,091,810.80 × 5,326,154.40
  4. Step 4: Simplify right side
    12,061,207.20x = 96,359,777,696,387.53
  5. Step 5: Solve for x
    x = 96,359,777,696,387.53/12,061,207.20
  6. Step 6: Final answer
    x = 7,989,231.60

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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.