Home / 12,456,020.10-18,686,982.60-6,391,687.80

Finding the Fourth Proportional to 12,456,020.10, 18,686,982.60 and 6,391,687.80

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Solution

The fourth proportional to 12,456,020.10, 18,686,982.60 and 6,391,687.80 is: 9,589,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,020.10 : 18,686,982.60 = 6,391,687.80 : x
  2. Step 2: Convert to fraction form
    12,456,020.10/18,686,982.60 = 6,391,687.80/x
  3. Step 3: Cross multiply
    12,456,020.10x = 18,686,982.60 × 6,391,687.80
  4. Step 4: Simplify right side
    12,456,020.10x = 119,441,358,703,232.28
  5. Step 5: Solve for x
    x = 119,441,358,703,232.28/12,456,020.10
  6. Step 6: Final answer
    x = 9,589,046.72

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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.