Home / 3,120,319.15-4,680,478.73-2,910,367.15

Finding the Fourth Proportional to 3,120,319.15, 4,680,478.73 and 2,910,367.15

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Solution

The fourth proportional to 3,120,319.15, 4,680,478.73 and 2,910,367.15 is: 4,365,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,319.15 : 4,680,478.73 = 2,910,367.15 : x
  2. Step 2: Convert to fraction form
    3,120,319.15/4,680,478.73 = 2,910,367.15/x
  3. Step 3: Cross multiply
    3,120,319.15x = 4,680,478.73 × 2,910,367.15
  4. Step 4: Simplify right side
    3,120,319.15x = 13,621,911,542,065.72
  5. Step 5: Solve for x
    x = 13,621,911,542,065.72/3,120,319.15
  6. Step 6: Final answer
    x = 4,365,550.73

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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.