Home / 7,928,426.85-11,892,640.28-7,015,135.65

Finding the Fourth Proportional to 7,928,426.85, 11,892,640.28 and 7,015,135.65

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Solution

The fourth proportional to 7,928,426.85, 11,892,640.28 and 7,015,135.65 is: 10,522,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928,426.85 : 11,892,640.28 = 7,015,135.65 : x
  2. Step 2: Convert to fraction form
    7,928,426.85/11,892,640.28 = 7,015,135.65/x
  3. Step 3: Cross multiply
    7,928,426.85x = 11,892,640.28 × 7,015,135.65
  4. Step 4: Simplify right side
    7,928,426.85x = 83,428,484,765,778.31
  5. Step 5: Solve for x
    x = 83,428,484,765,778.31/7,928,426.85
  6. Step 6: Final answer
    x = 10,522,703.48

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Double scale
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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.