Home / 12,290,936.10-18,436,404.15-8,464,560.90

Finding the Fourth Proportional to 12,290,936.10, 18,436,404.15 and 8,464,560.90

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Solution

The fourth proportional to 12,290,936.10, 18,436,404.15 and 8,464,560.90 is: 12,696,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,936.10 : 18,436,404.15 = 8,464,560.90 : x
  2. Step 2: Convert to fraction form
    12,290,936.10/18,436,404.15 = 8,464,560.90/x
  3. Step 3: Cross multiply
    12,290,936.10x = 18,436,404.15 × 8,464,560.90
  4. Step 4: Simplify right side
    12,290,936.10x = 156,056,065,704,687.72
  5. Step 5: Solve for x
    x = 156,056,065,704,687.72/12,290,936.10
  6. Step 6: Final answer
    x = 12,696,841.35

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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.