Home / 21,731,489.80-32,597,234.70-13,122,145.60

Finding the Fourth Proportional to 21,731,489.80, 32,597,234.70 and 13,122,145.60

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Solution

The fourth proportional to 21,731,489.80, 32,597,234.70 and 13,122,145.60 is: 19,683,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,489.80 : 32,597,234.70 = 13,122,145.60 : x
  2. Step 2: Convert to fraction form
    21,731,489.80/32,597,234.70 = 13,122,145.60/x
  3. Step 3: Cross multiply
    21,731,489.80x = 32,597,234.70 × 13,122,145.60
  4. Step 4: Simplify right side
    21,731,489.80x = 427,745,659,890,772.31
  5. Step 5: Solve for x
    x = 427,745,659,890,772.31/21,731,489.80
  6. Step 6: Final answer
    x = 19,683,218.40

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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.