Home / 8,176,918.40-12,270,043.20-3,131,849.60

Finding the Fourth Proportional to 8,176,918.40, 12,270,043.20 and 3,131,849.60

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Solution

The fourth proportional to 8,176,918.40, 12,270,043.20 and 3,131,849.60 is: 4,699,561.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176,918.40 : 12,270,043.20 = 3,131,849.60 : x
  2. Step 2: Convert to fraction form
    8,176,918.40/12,270,043.20 = 3,131,849.60/x
  3. Step 3: Cross multiply
    8,176,918.40x = 12,270,043.20 × 3,131,849.60
  4. Step 4: Simplify right side
    8,176,918.40x = 38,427,929,887,902.72
  5. Step 5: Solve for x
    x = 38,427,929,887,902.72/8,176,918.40
  6. Step 6: Final answer
    x = 4,699,561.38

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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.