Home / 12,225,813.40-18,338,720.10-10,903,115.80

Finding the Fourth Proportional to 12,225,813.40, 18,338,720.10 and 10,903,115.80

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Solution

The fourth proportional to 12,225,813.40, 18,338,720.10 and 10,903,115.80 is: 16,354,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,813.40 : 18,338,720.10 = 10,903,115.80 : x
  2. Step 2: Convert to fraction form
    12,225,813.40/18,338,720.10 = 10,903,115.80/x
  3. Step 3: Cross multiply
    12,225,813.40x = 18,338,720.10 × 10,903,115.80
  4. Step 4: Simplify right side
    12,225,813.40x = 199,949,188,874,087.62
  5. Step 5: Solve for x
    x = 199,949,188,874,087.62/12,225,813.40
  6. Step 6: Final answer
    x = 16,354,673.70

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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.