Home / 7,003,906.40-9,665,406.78-3,948,120.65

Finding the Fourth Proportional to 7,003,906.40, 9,665,406.78 and 3,948,120.65

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Solution

The fourth proportional to 7,003,906.40, 9,665,406.78 and 3,948,120.65 is: 5,448,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003,906.40 : 9,665,406.78 = 3,948,120.65 : x
  2. Step 2: Convert to fraction form
    7,003,906.40/9,665,406.78 = 3,948,120.65/x
  3. Step 3: Cross multiply
    7,003,906.40x = 9,665,406.78 × 3,948,120.65
  4. Step 4: Simplify right side
    7,003,906.40x = 38,160,192,108,126.07
  5. Step 5: Solve for x
    x = 38,160,192,108,126.07/7,003,906.40
  6. Step 6: Final answer
    x = 5,448,415.49

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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.