Home / 120,563,614.53-180,617,233.73-71,231,940.27

Finding the Fourth Proportional to 120,563,614.53, 180,617,233.73 and 71,231,940.27

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Solution

The fourth proportional to 120,563,614.53, 180,617,233.73 and 71,231,940.27 is: 106,713,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,563,614.53 : 180,617,233.73 = 71,231,940.27 : x
  2. Step 2: Convert to fraction form
    120,563,614.53/180,617,233.73 = 71,231,940.27/x
  3. Step 3: Cross multiply
    120,563,614.53x = 180,617,233.73 × 71,231,940.27
  4. Step 4: Simplify right side
    120,563,614.53x = 12,865,716,004,431,828
  5. Step 5: Solve for x
    x = 12,865,716,004,431,828/120,563,614.53
  6. Step 6: Final answer
    x = 106,713,091.30

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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.