Home / 18,686,155.80-28,029,233.70-5,910,576.60

Finding the Fourth Proportional to 18,686,155.80, 28,029,233.70 and 5,910,576.60

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Solution

The fourth proportional to 18,686,155.80, 28,029,233.70 and 5,910,576.60 is: 8,865,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,155.80 : 28,029,233.70 = 5,910,576.60 : x
  2. Step 2: Convert to fraction form
    18,686,155.80/28,029,233.70 = 5,910,576.60/x
  3. Step 3: Cross multiply
    18,686,155.80x = 28,029,233.70 × 5,910,576.60
  4. Step 4: Simplify right side
    18,686,155.80x = 165,668,932,823,151.41
  5. Step 5: Solve for x
    x = 165,668,932,823,151.41/18,686,155.80
  6. Step 6: Final answer
    x = 8,865,864.90

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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.