Home / 12,420,865.88-18,633,048.42-4,332,661.91

Finding the Fourth Proportional to 12,420,865.88, 18,633,048.42 and 4,332,661.91

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Solution

The fourth proportional to 12,420,865.88, 18,633,048.42 and 4,332,661.91 is: 6,499,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,865.88 : 18,633,048.42 = 4,332,661.91 : x
  2. Step 2: Convert to fraction form
    12,420,865.88/18,633,048.42 = 4,332,661.91/x
  3. Step 3: Cross multiply
    12,420,865.88x = 18,633,048.42 × 4,332,661.91
  4. Step 4: Simplify right side
    12,420,865.88x = 80,730,699,156,519.69
  5. Step 5: Solve for x
    x = 80,730,699,156,519.69/12,420,865.88
  6. Step 6: Final answer
    x = 6,499,603.16

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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.