Home / 12,771,206.40-19,156,809.60-12,267,321.60

Finding the Fourth Proportional to 12,771,206.40, 19,156,809.60 and 12,267,321.60

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Solution

The fourth proportional to 12,771,206.40, 19,156,809.60 and 12,267,321.60 is: 18,400,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,206.40 : 19,156,809.60 = 12,267,321.60 : x
  2. Step 2: Convert to fraction form
    12,771,206.40/19,156,809.60 = 12,267,321.60/x
  3. Step 3: Cross multiply
    12,771,206.40x = 19,156,809.60 × 12,267,321.60
  4. Step 4: Simplify right side
    12,771,206.40x = 235,002,744,193,167.38
  5. Step 5: Solve for x
    x = 235,002,744,193,167.38/12,771,206.40
  6. Step 6: Final answer
    x = 18,400,982.40

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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.