Home / 3,120,320.10-4,680,480.15-2,647,928.10

Finding the Fourth Proportional to 3,120,320.10, 4,680,480.15 and 2,647,928.10

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Solution

The fourth proportional to 3,120,320.10, 4,680,480.15 and 2,647,928.10 is: 3,971,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,320.10 : 4,680,480.15 = 2,647,928.10 : x
  2. Step 2: Convert to fraction form
    3,120,320.10/4,680,480.15 = 2,647,928.10/x
  3. Step 3: Cross multiply
    3,120,320.10x = 4,680,480.15 × 2,647,928.10
  4. Step 4: Simplify right side
    3,120,320.10x = 12,393,574,910,677.22
  5. Step 5: Solve for x
    x = 12,393,574,910,677.22/3,120,320.10
  6. Step 6: Final answer
    x = 3,971,892.15

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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.