Home / 18,784,119.68-28,175,778.38-5,137,266.11

Finding the Fourth Proportional to 18,784,119.68, 28,175,778.38 and 5,137,266.11

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Solution

The fourth proportional to 18,784,119.68, 28,175,778.38 and 5,137,266.11 is: 7,705,789.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784,119.68 : 28,175,778.38 = 5,137,266.11 : x
  2. Step 2: Convert to fraction form
    18,784,119.68/28,175,778.38 = 5,137,266.11/x
  3. Step 3: Cross multiply
    18,784,119.68x = 28,175,778.38 × 5,137,266.11
  4. Step 4: Simplify right side
    18,784,119.68x = 144,746,471,227,879.50
  5. Step 5: Solve for x
    x = 144,746,471,227,879.50/18,784,119.68
  6. Step 6: Final answer
    x = 7,705,789.45

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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.