Home / 6,931,974.72-10,393,959.78-2,138,376.90

Finding the Fourth Proportional to 6,931,974.72, 10,393,959.78 and 2,138,376.90

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Solution

The fourth proportional to 6,931,974.72, 10,393,959.78 and 2,138,376.90 is: 3,206,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931,974.72 : 10,393,959.78 = 2,138,376.90 : x
  2. Step 2: Convert to fraction form
    6,931,974.72/10,393,959.78 = 2,138,376.90/x
  3. Step 3: Cross multiply
    6,931,974.72x = 10,393,959.78 × 2,138,376.90
  4. Step 4: Simplify right side
    6,931,974.72x = 22,226,203,493,081.08
  5. Step 5: Solve for x
    x = 22,226,203,493,081.08/6,931,974.72
  6. Step 6: Final answer
    x = 3,206,330.72

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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.