Home / 7,142,330.88-9,856,487.70-3,879,209.44

Finding the Fourth Proportional to 7,142,330.88, 9,856,487.70 and 3,879,209.44

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Solution

The fourth proportional to 7,142,330.88, 9,856,487.70 and 3,879,209.44 is: 5,353,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,330.88 : 9,856,487.70 = 3,879,209.44 : x
  2. Step 2: Convert to fraction form
    7,142,330.88/9,856,487.70 = 3,879,209.44/x
  3. Step 3: Cross multiply
    7,142,330.88x = 9,856,487.70 × 3,879,209.44
  4. Step 4: Simplify right side
    7,142,330.88x = 38,235,380,131,083.88
  5. Step 5: Solve for x
    x = 38,235,380,131,083.88/7,142,330.88
  6. Step 6: Final answer
    x = 5,353,347.64

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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.