Home / 28,000,704.70-42,001,057.05-20,347,954.30

Finding the Fourth Proportional to 28,000,704.70, 42,001,057.05 and 20,347,954.30

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Solution

The fourth proportional to 28,000,704.70, 42,001,057.05 and 20,347,954.30 is: 30,521,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000,704.70 : 42,001,057.05 = 20,347,954.30 : x
  2. Step 2: Convert to fraction form
    28,000,704.70/42,001,057.05 = 20,347,954.30/x
  3. Step 3: Cross multiply
    28,000,704.70x = 42,001,057.05 × 20,347,954.30
  4. Step 4: Simplify right side
    28,000,704.70x = 854,635,589,405,092.75
  5. Step 5: Solve for x
    x = 854,635,589,405,092.75/28,000,704.70
  6. Step 6: Final answer
    x = 30,521,931.45

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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.