Home / 7,211,120.72-9,951,349.56-3,948,146.96

Finding the Fourth Proportional to 7,211,120.72, 9,951,349.56 and 3,948,146.96

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Solution

The fourth proportional to 7,211,120.72, 9,951,349.56 and 3,948,146.96 is: 5,448,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211,120.72 : 9,951,349.56 = 3,948,146.96 : x
  2. Step 2: Convert to fraction form
    7,211,120.72/9,951,349.56 = 3,948,146.96/x
  3. Step 3: Cross multiply
    7,211,120.72x = 9,951,349.56 × 3,948,146.96
  4. Step 4: Simplify right side
    7,211,120.72x = 39,289,390,513,211.34
  5. Step 5: Solve for x
    x = 39,289,390,513,211.34/7,211,120.72
  6. Step 6: Final answer
    x = 5,448,444.43

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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.