Home / 6,999,542.20-9,659,366.22-3,780,278.20

Finding the Fourth Proportional to 6,999,542.20, 9,659,366.22 and 3,780,278.20

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Solution

The fourth proportional to 6,999,542.20, 9,659,366.22 and 3,780,278.20 is: 5,216,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999,542.20 : 9,659,366.22 = 3,780,278.20 : x
  2. Step 2: Convert to fraction form
    6,999,542.20/9,659,366.22 = 3,780,278.20/x
  3. Step 3: Cross multiply
    6,999,542.20x = 9,659,366.22 × 3,780,278.20
  4. Step 4: Simplify right side
    6,999,542.20x = 36,515,091,547,282.41
  5. Step 5: Solve for x
    x = 36,515,091,547,282.41/6,999,542.20
  6. Step 6: Final answer
    x = 5,216,782.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.