Home / 12,491,705.80-18,737,558.70-9,653,854.60

Finding the Fourth Proportional to 12,491,705.80, 18,737,558.70 and 9,653,854.60

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Solution

The fourth proportional to 12,491,705.80, 18,737,558.70 and 9,653,854.60 is: 14,480,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,705.80 : 18,737,558.70 = 9,653,854.60 : x
  2. Step 2: Convert to fraction form
    12,491,705.80/18,737,558.70 = 9,653,854.60/x
  3. Step 3: Cross multiply
    12,491,705.80x = 18,737,558.70 × 9,653,854.60
  4. Step 4: Simplify right side
    12,491,705.80x = 180,889,667,248,765
  5. Step 5: Solve for x
    x = 180,889,667,248,765/12,491,705.80
  6. Step 6: Final answer
    x = 14,480,781.90

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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.