Home / 81,491,975.28-112,425,738.69-46,202,348.88

Finding the Fourth Proportional to 81,491,975.28, 112,425,738.69 and 46,202,348.88

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Solution

The fourth proportional to 81,491,975.28, 112,425,738.69 and 46,202,348.88 is: 63,740,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,491,975.28 : 112,425,738.69 = 46,202,348.88 : x
  2. Step 2: Convert to fraction form
    81,491,975.28/112,425,738.69 = 46,202,348.88/x
  3. Step 3: Cross multiply
    81,491,975.28x = 112,425,738.69 × 46,202,348.88
  4. Step 4: Simplify right side
    81,491,975.28x = 5,194,333,202,047,094
  5. Step 5: Solve for x
    x = 5,194,333,202,047,094/81,491,975.28
  6. Step 6: Final answer
    x = 63,740,425.78

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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.