Home / 8,702,820.81-12,010,216.82-5,218,726.83

Finding the Fourth Proportional to 8,702,820.81, 12,010,216.82 and 5,218,726.83

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Solution

The fourth proportional to 8,702,820.81, 12,010,216.82 and 5,218,726.83 is: 7,202,037.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702,820.81 : 12,010,216.82 = 5,218,726.83 : x
  2. Step 2: Convert to fraction form
    8,702,820.81/12,010,216.82 = 5,218,726.83/x
  3. Step 3: Cross multiply
    8,702,820.81x = 12,010,216.82 × 5,218,726.83
  4. Step 4: Simplify right side
    8,702,820.81x = 62,678,040,752,651.28
  5. Step 5: Solve for x
    x = 62,678,040,752,651.28/8,702,820.81
  6. Step 6: Final answer
    x = 7,202,037.38

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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.