Home / 5,380,932.78-7,421,488.25-3,447,373.28

Finding the Fourth Proportional to 5,380,932.78, 7,421,488.25 and 3,447,373.28

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Solution

The fourth proportional to 5,380,932.78, 7,421,488.25 and 3,447,373.28 is: 4,754,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380,932.78 : 7,421,488.25 = 3,447,373.28 : x
  2. Step 2: Convert to fraction form
    5,380,932.78/7,421,488.25 = 3,447,373.28/x
  3. Step 3: Cross multiply
    5,380,932.78x = 7,421,488.25 × 3,447,373.28
  4. Step 4: Simplify right side
    5,380,932.78x = 25,584,640,236,539.65
  5. Step 5: Solve for x
    x = 25,584,640,236,539.65/5,380,932.78
  6. Step 6: Final answer
    x = 4,754,684.97

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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.