Home / 8,196,311.40-12,295,063.80-3,147,621.90

Finding the Fourth Proportional to 8,196,311.40, 12,295,063.80 and 3,147,621.90

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Solution

The fourth proportional to 8,196,311.40, 12,295,063.80 and 3,147,621.90 is: 4,721,662.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196,311.40 : 12,295,063.80 = 3,147,621.90 : x
  2. Step 2: Convert to fraction form
    8,196,311.40/12,295,063.80 = 3,147,621.90/x
  3. Step 3: Cross multiply
    8,196,311.40x = 12,295,063.80 × 3,147,621.90
  4. Step 4: Simplify right side
    8,196,311.40x = 38,700,212,078,777.22
  5. Step 5: Solve for x
    x = 38,700,212,078,777.22/8,196,311.40
  6. Step 6: Final answer
    x = 4,721,662.00

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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.