Home / 12,225,819.40-18,338,729.10-7,442,850.40

Finding the Fourth Proportional to 12,225,819.40, 18,338,729.10 and 7,442,850.40

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Solution

The fourth proportional to 12,225,819.40, 18,338,729.10 and 7,442,850.40 is: 11,164,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,819.40 : 18,338,729.10 = 7,442,850.40 : x
  2. Step 2: Convert to fraction form
    12,225,819.40/18,338,729.10 = 7,442,850.40/x
  3. Step 3: Cross multiply
    12,225,819.40x = 18,338,729.10 × 7,442,850.40
  4. Step 4: Simplify right side
    12,225,819.40x = 136,492,417,217,426.66
  5. Step 5: Solve for x
    x = 136,492,417,217,426.66/12,225,819.40
  6. Step 6: Final answer
    x = 11,164,275.60

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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.