Home / 20,996,057.78-31,494,087.06-5,039,705.78

Finding the Fourth Proportional to 20,996,057.78, 31,494,087.06 and 5,039,705.78

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Solution

The fourth proportional to 20,996,057.78, 31,494,087.06 and 5,039,705.78 is: 7,559,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,057.78 : 31,494,087.06 = 5,039,705.78 : x
  2. Step 2: Convert to fraction form
    20,996,057.78/31,494,087.06 = 5,039,705.78/x
  3. Step 3: Cross multiply
    20,996,057.78x = 31,494,087.06 × 5,039,705.78
  4. Step 4: Simplify right side
    20,996,057.78x = 158,720,932,592,105.22
  5. Step 5: Solve for x
    x = 158,720,932,592,105.22/20,996,057.78
  6. Step 6: Final answer
    x = 7,559,558.76

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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.