Home / 6,640,642.80-9,965,629.80-2,856,841.20

Finding the Fourth Proportional to 6,640,642.80, 9,965,629.80 and 2,856,841.20

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Solution

The fourth proportional to 6,640,642.80, 9,965,629.80 and 2,856,841.20 is: 4,287,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,642.80 : 9,965,629.80 = 2,856,841.20 : x
  2. Step 2: Convert to fraction form
    6,640,642.80/9,965,629.80 = 2,856,841.20/x
  3. Step 3: Cross multiply
    6,640,642.80x = 9,965,629.80 × 2,856,841.20
  4. Step 4: Simplify right side
    6,640,642.80x = 28,470,221,796,587.77
  5. Step 5: Solve for x
    x = 28,470,221,796,587.77/6,640,642.80
  6. Step 6: Final answer
    x = 4,287,268.97

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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.