Home / 20,609,864.60-30,914,796.90-12,099,810.20

Finding the Fourth Proportional to 20,609,864.60, 30,914,796.90 and 12,099,810.20

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Solution

The fourth proportional to 20,609,864.60, 30,914,796.90 and 12,099,810.20 is: 18,149,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,864.60 : 30,914,796.90 = 12,099,810.20 : x
  2. Step 2: Convert to fraction form
    20,609,864.60/30,914,796.90 = 12,099,810.20/x
  3. Step 3: Cross multiply
    20,609,864.60x = 30,914,796.90 × 12,099,810.20
  4. Step 4: Simplify right side
    20,609,864.60x = 374,063,174,861,548.31
  5. Step 5: Solve for x
    x = 374,063,174,861,548.31/20,609,864.60
  6. Step 6: Final answer
    x = 18,149,715.30

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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.