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Finding the Fourth Proportional to 8,690,614.80, 13,035,922.20 and 8,322,032.40

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Solution

The fourth proportional to 8,690,614.80, 13,035,922.20 and 8,322,032.40 is: 12,483,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,614.80 : 13,035,922.20 = 8,322,032.40 : x
  2. Step 2: Convert to fraction form
    8,690,614.80/13,035,922.20 = 8,322,032.40/x
  3. Step 3: Cross multiply
    8,690,614.80x = 13,035,922.20 × 8,322,032.40
  4. Step 4: Simplify right side
    8,690,614.80x = 108,485,366,912,279.28
  5. Step 5: Solve for x
    x = 108,485,366,912,279.28/8,690,614.80
  6. Step 6: Final answer
    x = 12,483,048.60

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Similar ratio
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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.