Home / 8,320,020.20-12,455,147.10-4,952,493.80

Finding the Fourth Proportional to 8,320,020.20, 12,455,147.10 and 4,952,493.80

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Solution

The fourth proportional to 8,320,020.20, 12,455,147.10 and 4,952,493.80 is: 7,413,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,020.20 : 12,455,147.10 = 4,952,493.80 : x
  2. Step 2: Convert to fraction form
    8,320,020.20/12,455,147.10 = 4,952,493.80/x
  3. Step 3: Cross multiply
    8,320,020.20x = 12,455,147.10 × 4,952,493.80
  4. Step 4: Simplify right side
    8,320,020.20x = 61,684,038,790,837.98
  5. Step 5: Solve for x
    x = 61,684,038,790,837.98/8,320,020.20
  6. Step 6: Final answer
    x = 7,413,928.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.