Home / 18,580,087.35-27,870,131.03-12,123,079.20

Finding the Fourth Proportional to 18,580,087.35, 27,870,131.03 and 12,123,079.20

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Solution

The fourth proportional to 18,580,087.35, 27,870,131.03 and 12,123,079.20 is: 18,184,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580,087.35 : 27,870,131.03 = 12,123,079.20 : x
  2. Step 2: Convert to fraction form
    18,580,087.35/27,870,131.03 = 12,123,079.20/x
  3. Step 3: Cross multiply
    18,580,087.35x = 27,870,131.03 × 12,123,079.20
  4. Step 4: Simplify right side
    18,580,087.35x = 337,871,805,730,452.12
  5. Step 5: Solve for x
    x = 337,871,805,730,452.12/18,580,087.35
  6. Step 6: Final answer
    x = 18,184,618.80

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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.