Home / 81,158,589.28-111,986,895.36-49,352,533.12

Finding the Fourth Proportional to 81,158,589.28, 111,986,895.36 and 49,352,533.12

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Solution

The fourth proportional to 81,158,589.28, 111,986,895.36 and 49,352,533.12 is: 68,099,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158,589.28 : 111,986,895.36 = 49,352,533.12 : x
  2. Step 2: Convert to fraction form
    81,158,589.28/111,986,895.36 = 49,352,533.12/x
  3. Step 3: Cross multiply
    81,158,589.28x = 111,986,895.36 × 49,352,533.12
  4. Step 4: Simplify right side
    81,158,589.28x = 5,526,836,962,260,374
  5. Step 5: Solve for x
    x = 5,526,836,962,260,374/81,158,589.28
  6. Step 6: Final answer
    x = 68,099,224.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.