Home / 8,205,185.20-12,307,777.80-7,260,401.20

Finding the Fourth Proportional to 8,205,185.20, 12,307,777.80 and 7,260,401.20

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Solution

The fourth proportional to 8,205,185.20, 12,307,777.80 and 7,260,401.20 is: 10,890,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205,185.20 : 12,307,777.80 = 7,260,401.20 : x
  2. Step 2: Convert to fraction form
    8,205,185.20/12,307,777.80 = 7,260,401.20/x
  3. Step 3: Cross multiply
    8,205,185.20x = 12,307,777.80 × 7,260,401.20
  4. Step 4: Simplify right side
    8,205,185.20x = 89,359,404,708,453.38
  5. Step 5: Solve for x
    x = 89,359,404,708,453.38/8,205,185.20
  6. Step 6: Final answer
    x = 10,890,601.80

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Similar ratio
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1.5x scale

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.