Home / 81,079,158.87-111,887,856.33-43,909,137.11

Finding the Fourth Proportional to 81,079,158.87, 111,887,856.33 and 43,909,137.11

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Solution

The fourth proportional to 81,079,158.87, 111,887,856.33 and 43,909,137.11 is: 60,593,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,158.87 : 111,887,856.33 = 43,909,137.11 : x
  2. Step 2: Convert to fraction form
    81,079,158.87/111,887,856.33 = 43,909,137.11/x
  3. Step 3: Cross multiply
    81,079,158.87x = 111,887,856.33 × 43,909,137.11
  4. Step 4: Simplify right side
    81,079,158.87x = 4,912,899,224,537,951
  5. Step 5: Solve for x
    x = 4,912,899,224,537,951/81,079,158.87
  6. Step 6: Final answer
    x = 60,593,860.28

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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.