Home / 7,171,989.65-9,897,057.44-3,908,734.55

Finding the Fourth Proportional to 7,171,989.65, 9,897,057.44 and 3,908,734.55

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Solution

The fourth proportional to 7,171,989.65, 9,897,057.44 and 3,908,734.55 is: 5,393,896.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,989.65 : 9,897,057.44 = 3,908,734.55 : x
  2. Step 2: Convert to fraction form
    7,171,989.65/9,897,057.44 = 3,908,734.55/x
  3. Step 3: Cross multiply
    7,171,989.65x = 9,897,057.44 × 3,908,734.55
  4. Step 4: Simplify right side
    7,171,989.65x = 38,684,970,363,791.95
  5. Step 5: Solve for x
    x = 38,684,970,363,791.95/7,171,989.65
  6. Step 6: Final answer
    x = 5,393,896.57

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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.