Home / 12,647,078.25-17,455,332.38-7,214,570.25

Finding the Fourth Proportional to 12,647,078.25, 17,455,332.38 and 7,214,570.25

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Solution

The fourth proportional to 12,647,078.25, 17,455,332.38 and 7,214,570.25 is: 9,957,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647,078.25 : 17,455,332.38 = 7,214,570.25 : x
  2. Step 2: Convert to fraction form
    12,647,078.25/17,455,332.38 = 7,214,570.25/x
  3. Step 3: Cross multiply
    12,647,078.25x = 17,455,332.38 × 7,214,570.25
  4. Step 4: Simplify right side
    12,647,078.25x = 125,932,721,656,536.84
  5. Step 5: Solve for x
    x = 125,932,721,656,536.84/12,647,078.25
  6. Step 6: Final answer
    x = 9,957,455.72

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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.