Home / 3,120,414.30-4,680,621.45-2,642,117.40

Finding the Fourth Proportional to 3,120,414.30, 4,680,621.45 and 2,642,117.40

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Solution

The fourth proportional to 3,120,414.30, 4,680,621.45 and 2,642,117.40 is: 3,963,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,414.30 : 4,680,621.45 = 2,642,117.40 : x
  2. Step 2: Convert to fraction form
    3,120,414.30/4,680,621.45 = 2,642,117.40/x
  3. Step 3: Cross multiply
    3,120,414.30x = 4,680,621.45 × 2,642,117.40
  4. Step 4: Simplify right side
    3,120,414.30x = 12,366,751,375,858.23
  5. Step 5: Solve for x
    x = 12,366,751,375,858.23/3,120,414.30
  6. Step 6: Final answer
    x = 3,963,176.10

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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.