Home / 3,120,352.80-4,680,529.20-2,642,055.90

Finding the Fourth Proportional to 3,120,352.80, 4,680,529.20 and 2,642,055.90

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Solution

The fourth proportional to 3,120,352.80, 4,680,529.20 and 2,642,055.90 is: 3,963,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,352.80 : 4,680,529.20 = 2,642,055.90 : x
  2. Step 2: Convert to fraction form
    3,120,352.80/4,680,529.20 = 2,642,055.90/x
  3. Step 3: Cross multiply
    3,120,352.80x = 4,680,529.20 × 2,642,055.90
  4. Step 4: Simplify right side
    3,120,352.80x = 12,366,219,787,982.28
  5. Step 5: Solve for x
    x = 12,366,219,787,982.28/3,120,352.80
  6. Step 6: Final answer
    x = 3,963,083.85

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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.