Home / 7,219,359.78-9,962,723.46-3,956,181.72

Finding the Fourth Proportional to 7,219,359.78, 9,962,723.46 and 3,956,181.72

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Solution

The fourth proportional to 7,219,359.78, 9,962,723.46 and 3,956,181.72 is: 5,459,534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219,359.78 : 9,962,723.46 = 3,956,181.72 : x
  2. Step 2: Convert to fraction form
    7,219,359.78/9,962,723.46 = 3,956,181.72/x
  3. Step 3: Cross multiply
    7,219,359.78x = 9,962,723.46 × 3,956,181.72
  4. Step 4: Simplify right side
    7,219,359.78x = 39,414,344,433,867.16
  5. Step 5: Solve for x
    x = 39,414,344,433,867.16/7,219,359.78
  6. Step 6: Final answer
    x = 5,459,534.59

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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.