Home / 81,959,189.40-113,103,722.52-45,289,760.40

Finding the Fourth Proportional to 81,959,189.40, 113,103,722.52 and 45,289,760.40

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Solution

The fourth proportional to 81,959,189.40, 113,103,722.52 and 45,289,760.40 is: 62,499,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959,189.40 : 113,103,722.52 = 45,289,760.40 : x
  2. Step 2: Convert to fraction form
    81,959,189.40/113,103,722.52 = 45,289,760.40/x
  3. Step 3: Cross multiply
    81,959,189.40x = 113,103,722.52 × 45,289,760.40
  4. Step 4: Simplify right side
    81,959,189.40x = 5,122,440,493,278,884
  5. Step 5: Solve for x
    x = 5,122,440,493,278,884/81,959,189.40
  6. Step 6: Final answer
    x = 62,499,892.09

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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.