Home / 21,863,504.80-32,795,257.20-20,221,213.60

Finding the Fourth Proportional to 21,863,504.80, 32,795,257.20 and 20,221,213.60

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Solution

The fourth proportional to 21,863,504.80, 32,795,257.20 and 20,221,213.60 is: 30,331,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,504.80 : 32,795,257.20 = 20,221,213.60 : x
  2. Step 2: Convert to fraction form
    21,863,504.80/32,795,257.20 = 20,221,213.60/x
  3. Step 3: Cross multiply
    21,863,504.80x = 32,795,257.20 × 20,221,213.60
  4. Step 4: Simplify right side
    21,863,504.80x = 663,159,900,908,138
  5. Step 5: Solve for x
    x = 663,159,900,908,138/21,863,504.80
  6. Step 6: Final answer
    x = 30,331,820.40

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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.