Home / 18,678,813.40-28,018,220.10-5,900,609.80

Finding the Fourth Proportional to 18,678,813.40, 28,018,220.10 and 5,900,609.80

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Solution

The fourth proportional to 18,678,813.40, 28,018,220.10 and 5,900,609.80 is: 8,850,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,813.40 : 28,018,220.10 = 5,900,609.80 : x
  2. Step 2: Convert to fraction form
    18,678,813.40/28,018,220.10 = 5,900,609.80/x
  3. Step 3: Cross multiply
    18,678,813.40x = 28,018,220.10 × 5,900,609.80
  4. Step 4: Simplify right side
    18,678,813.40x = 165,324,584,100,616.97
  5. Step 5: Solve for x
    x = 165,324,584,100,616.97/18,678,813.40
  6. Step 6: Final answer
    x = 8,850,914.70

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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.