Home / 12,095,921.70-18,143,882.55-11,172,132.90

Finding the Fourth Proportional to 12,095,921.70, 18,143,882.55 and 11,172,132.90

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Solution

The fourth proportional to 12,095,921.70, 18,143,882.55 and 11,172,132.90 is: 16,758,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095,921.70 : 18,143,882.55 = 11,172,132.90 : x
  2. Step 2: Convert to fraction form
    12,095,921.70/18,143,882.55 = 11,172,132.90/x
  3. Step 3: Cross multiply
    12,095,921.70x = 18,143,882.55 × 11,172,132.90
  4. Step 4: Simplify right side
    12,095,921.70x = 202,705,867,170,590.91
  5. Step 5: Solve for x
    x = 202,705,867,170,590.91/12,095,921.70
  6. Step 6: Final answer
    x = 16,758,199.35

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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.