Home / 12,476,992.80-18,712,864.80-5,288,761.20

Finding the Fourth Proportional to 12,476,992.80, 18,712,864.80 and 5,288,761.20

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Solution

The fourth proportional to 12,476,992.80, 18,712,864.80 and 5,288,761.20 is: 7,932,029.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,992.80 : 18,712,864.80 = 5,288,761.20 : x
  2. Step 2: Convert to fraction form
    12,476,992.80/18,712,864.80 = 5,288,761.20/x
  3. Step 3: Cross multiply
    12,476,992.80x = 18,712,864.80 × 5,288,761.20
  4. Step 4: Simplify right side
    12,476,992.80x = 98,967,873,295,085.77
  5. Step 5: Solve for x
    x = 98,967,873,295,085.77/12,476,992.80
  6. Step 6: Final answer
    x = 7,932,029.37

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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.