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Finding the Fourth Proportional to 8,640,526.96, 12,946,589.52 and 2,957,651.20

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Solution

The fourth proportional to 8,640,526.96, 12,946,589.52 and 2,957,651.20 is: 4,431,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,526.96 : 12,946,589.52 = 2,957,651.20 : x
  2. Step 2: Convert to fraction form
    8,640,526.96/12,946,589.52 = 2,957,651.20/x
  3. Step 3: Cross multiply
    8,640,526.96x = 12,946,589.52 × 2,957,651.20
  4. Step 4: Simplify right side
    8,640,526.96x = 38,291,496,029,735.42
  5. Step 5: Solve for x
    x = 38,291,496,029,735.42/8,640,526.96
  6. Step 6: Final answer
    x = 4,431,615.83

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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.