Home / 8,478,721.45-12,718,159.06-2,413,450.79

Finding the Fourth Proportional to 8,478,721.45, 12,718,159.06 and 2,413,450.79

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Solution

The fourth proportional to 8,478,721.45, 12,718,159.06 and 2,413,450.79 is: 3,620,198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,721.45 : 12,718,159.06 = 2,413,450.79 : x
  2. Step 2: Convert to fraction form
    8,478,721.45/12,718,159.06 = 2,413,450.79/x
  3. Step 3: Cross multiply
    8,478,721.45x = 12,718,159.06 × 2,413,450.79
  4. Step 4: Simplify right side
    8,478,721.45x = 30,694,651,024,669.03
  5. Step 5: Solve for x
    x = 30,694,651,024,669.03/8,478,721.45
  6. Step 6: Final answer
    x = 3,620,198.07

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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.