Home / 8,421,143.23-12,632,174.27-2,663,446.86

Finding the Fourth Proportional to 8,421,143.23, 12,632,174.27 and 2,663,446.86

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Solution

The fourth proportional to 8,421,143.23, 12,632,174.27 and 2,663,446.86 is: 3,995,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,143.23 : 12,632,174.27 = 2,663,446.86 : x
  2. Step 2: Convert to fraction form
    8,421,143.23/12,632,174.27 = 2,663,446.86/x
  3. Step 3: Cross multiply
    8,421,143.23x = 12,632,174.27 × 2,663,446.86
  4. Step 4: Simplify right side
    8,421,143.23x = 33,645,124,891,074.98
  5. Step 5: Solve for x
    x = 33,645,124,891,074.98/8,421,143.23
  6. Step 6: Final answer
    x = 3,995,315.60

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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.