Home / 8,143,542.75-12,215,303.79-2,078,274.59

Finding the Fourth Proportional to 8,143,542.75, 12,215,303.79 and 2,078,274.59

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Solution

The fourth proportional to 8,143,542.75, 12,215,303.79 and 2,078,274.59 is: 3,117,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,542.75 : 12,215,303.79 = 2,078,274.59 : x
  2. Step 2: Convert to fraction form
    8,143,542.75/12,215,303.79 = 2,078,274.59/x
  3. Step 3: Cross multiply
    8,143,542.75x = 12,215,303.79 × 2,078,274.59
  4. Step 4: Simplify right side
    8,143,542.75x = 25,386,755,498,632.43
  5. Step 5: Solve for x
    x = 25,386,755,498,632.43/8,143,542.75
  6. Step 6: Final answer
    x = 3,117,409.25

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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.