Home / 81,973,475.62-113,050,141.97-68,012,717.38

Finding the Fourth Proportional to 81,973,475.62, 113,050,141.97 and 68,012,717.38

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Solution

The fourth proportional to 81,973,475.62, 113,050,141.97 and 68,012,717.38 is: 93,796,771.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,973,475.62 : 113,050,141.97 = 68,012,717.38 : x
  2. Step 2: Convert to fraction form
    81,973,475.62/113,050,141.97 = 68,012,717.38/x
  3. Step 3: Cross multiply
    81,973,475.62x = 113,050,141.97 × 68,012,717.38
  4. Step 4: Simplify right side
    81,973,475.62x = 7,688,847,354,951,797
  5. Step 5: Solve for x
    x = 7,688,847,354,951,797/81,973,475.62
  6. Step 6: Final answer
    x = 93,796,771.42

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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.