Home / 10,642,456.80-15,965,758.80-4,251,621.60

Finding the Fourth Proportional to 10,642,456.80, 15,965,758.80 and 4,251,621.60

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Solution

The fourth proportional to 10,642,456.80, 15,965,758.80 and 4,251,621.60 is: 6,378,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642,456.80 : 15,965,758.80 = 4,251,621.60 : x
  2. Step 2: Convert to fraction form
    10,642,456.80/15,965,758.80 = 4,251,621.60/x
  3. Step 3: Cross multiply
    10,642,456.80x = 15,965,758.80 × 4,251,621.60
  4. Step 4: Simplify right side
    10,642,456.80x = 67,880,364,974,470.08
  5. Step 5: Solve for x
    x = 67,880,364,974,470.08/10,642,456.80
  6. Step 6: Final answer
    x = 6,378,260.80

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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.