Home / 12,879,229.40-19,318,844.10-8,344,266.20

Finding the Fourth Proportional to 12,879,229.40, 19,318,844.10 and 8,344,266.20

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Solution

The fourth proportional to 12,879,229.40, 19,318,844.10 and 8,344,266.20 is: 12,516,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,229.40 : 19,318,844.10 = 8,344,266.20 : x
  2. Step 2: Convert to fraction form
    12,879,229.40/19,318,844.10 = 8,344,266.20/x
  3. Step 3: Cross multiply
    12,879,229.40x = 19,318,844.10 × 8,344,266.20
  4. Step 4: Simplify right side
    12,879,229.40x = 161,201,577,846,699.44
  5. Step 5: Solve for x
    x = 161,201,577,846,699.44/12,879,229.40
  6. Step 6: Final answer
    x = 12,516,399.30

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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.