Home / 21,504,621.60-32,256,932.40-19,787,680.80

Finding the Fourth Proportional to 21,504,621.60, 32,256,932.40 and 19,787,680.80

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Solution

The fourth proportional to 21,504,621.60, 32,256,932.40 and 19,787,680.80 is: 29,681,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504,621.60 : 32,256,932.40 = 19,787,680.80 : x
  2. Step 2: Convert to fraction form
    21,504,621.60/32,256,932.40 = 19,787,680.80/x
  3. Step 3: Cross multiply
    21,504,621.60x = 32,256,932.40 × 19,787,680.80
  4. Step 4: Simplify right side
    21,504,621.60x = 638,289,881,918,377.88
  5. Step 5: Solve for x
    x = 638,289,881,918,377.88/21,504,621.60
  6. Step 6: Final answer
    x = 29,681,521.20

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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.