Home / 8,466,217.20-12,699,325.80-7,899,346.80

Finding the Fourth Proportional to 8,466,217.20, 12,699,325.80 and 7,899,346.80

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Solution

The fourth proportional to 8,466,217.20, 12,699,325.80 and 7,899,346.80 is: 11,849,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466,217.20 : 12,699,325.80 = 7,899,346.80 : x
  2. Step 2: Convert to fraction form
    8,466,217.20/12,699,325.80 = 7,899,346.80/x
  3. Step 3: Cross multiply
    8,466,217.20x = 12,699,325.80 × 7,899,346.80
  4. Step 4: Simplify right side
    8,466,217.20x = 100,316,378,620,387.44
  5. Step 5: Solve for x
    x = 100,316,378,620,387.44/8,466,217.20
  6. Step 6: Final answer
    x = 11,849,020.20

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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.