Home / 12,096,918.70-18,145,378.05-12,012,937.90

Finding the Fourth Proportional to 12,096,918.70, 18,145,378.05 and 12,012,937.90

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Solution

The fourth proportional to 12,096,918.70, 18,145,378.05 and 12,012,937.90 is: 18,019,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,918.70 : 18,145,378.05 = 12,012,937.90 : x
  2. Step 2: Convert to fraction form
    12,096,918.70/18,145,378.05 = 12,012,937.90/x
  3. Step 3: Cross multiply
    12,096,918.70x = 18,145,378.05 × 12,012,937.90
  4. Step 4: Simplify right side
    12,096,918.70x = 217,979,299,686,673.12
  5. Step 5: Solve for x
    x = 217,979,299,686,673.12/12,096,918.70
  6. Step 6: Final answer
    x = 18,019,406.85

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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.