Home / 21,384,149.80-32,085,440.70-12,416,367.40

Finding the Fourth Proportional to 21,384,149.80, 32,085,440.70 and 12,416,367.40

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Solution

The fourth proportional to 21,384,149.80, 32,085,440.70 and 12,416,367.40 is: 18,629,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,149.80 : 32,085,440.70 = 12,416,367.40 : x
  2. Step 2: Convert to fraction form
    21,384,149.80/32,085,440.70 = 12,416,367.40/x
  3. Step 3: Cross multiply
    21,384,149.80x = 32,085,440.70 × 12,416,367.40
  4. Step 4: Simplify right side
    21,384,149.80x = 398,384,619,922,113.19
  5. Step 5: Solve for x
    x = 398,384,619,922,113.19/21,384,149.80
  6. Step 6: Final answer
    x = 18,629,902.22

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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.