Home / 8,278,924.60-12,418,386.90-7,019,212.60

Finding the Fourth Proportional to 8,278,924.60, 12,418,386.90 and 7,019,212.60

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Solution

The fourth proportional to 8,278,924.60, 12,418,386.90 and 7,019,212.60 is: 10,528,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,924.60 : 12,418,386.90 = 7,019,212.60 : x
  2. Step 2: Convert to fraction form
    8,278,924.60/12,418,386.90 = 7,019,212.60/x
  3. Step 3: Cross multiply
    8,278,924.60x = 12,418,386.90 × 7,019,212.60
  4. Step 4: Simplify right side
    8,278,924.60x = 87,167,297,800,154.94
  5. Step 5: Solve for x
    x = 87,167,297,800,154.94/8,278,924.60
  6. Step 6: Final answer
    x = 10,528,818.90

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Double scale
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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.