Home / 8,305,500.80-12,457,329.60-6,806,979.20

Finding the Fourth Proportional to 8,305,500.80, 12,457,329.60 and 6,806,979.20

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Solution

The fourth proportional to 8,305,500.80, 12,457,329.60 and 6,806,979.20 is: 10,209,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,500.80 : 12,457,329.60 = 6,806,979.20 : x
  2. Step 2: Convert to fraction form
    8,305,500.80/12,457,329.60 = 6,806,979.20/x
  3. Step 3: Cross multiply
    8,305,500.80x = 12,457,329.60 × 6,806,979.20
  4. Step 4: Simplify right side
    8,305,500.80x = 84,796,783,474,744.31
  5. Step 5: Solve for x
    x = 84,796,783,474,744.31/8,305,500.80
  6. Step 6: Final answer
    x = 10,209,713.48

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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.