Home / 7,191,461.88-9,924,251.22-3,928,321.80

Finding the Fourth Proportional to 7,191,461.88, 9,924,251.22 and 3,928,321.80

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Solution

The fourth proportional to 7,191,461.88, 9,924,251.22 and 3,928,321.80 is: 5,421,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,461.88 : 9,924,251.22 = 3,928,321.80 : x
  2. Step 2: Convert to fraction form
    7,191,461.88/9,924,251.22 = 3,928,321.80/x
  3. Step 3: Cross multiply
    7,191,461.88x = 9,924,251.22 × 3,928,321.80
  4. Step 4: Simplify right side
    7,191,461.88x = 38,985,652,416,202.59
  5. Step 5: Solve for x
    x = 38,985,652,416,202.59/7,191,461.88
  6. Step 6: Final answer
    x = 5,421,102.56

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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.