Home / 21,451,975.20-32,177,962.80-19,100,512.80

Finding the Fourth Proportional to 21,451,975.20, 32,177,962.80 and 19,100,512.80

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Solution

The fourth proportional to 21,451,975.20, 32,177,962.80 and 19,100,512.80 is: 28,650,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451,975.20 : 32,177,962.80 = 19,100,512.80 : x
  2. Step 2: Convert to fraction form
    21,451,975.20/32,177,962.80 = 19,100,512.80/x
  3. Step 3: Cross multiply
    21,451,975.20x = 32,177,962.80 × 19,100,512.80
  4. Step 4: Simplify right side
    21,451,975.20x = 614,615,590,339,323.88
  5. Step 5: Solve for x
    x = 614,615,590,339,323.88/21,451,975.20
  6. Step 6: Final answer
    x = 28,650,769.20

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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.