Home / 20,161,013.40-30,304,505.70-19,783,099.80

Finding the Fourth Proportional to 20,161,013.40, 30,304,505.70 and 19,783,099.80

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Solution

The fourth proportional to 20,161,013.40, 30,304,505.70 and 19,783,099.80 is: 29,736,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,013.40 : 30,304,505.70 = 19,783,099.80 : x
  2. Step 2: Convert to fraction form
    20,161,013.40/30,304,505.70 = 19,783,099.80/x
  3. Step 3: Cross multiply
    20,161,013.40x = 30,304,505.70 × 19,783,099.80
  4. Step 4: Simplify right side
    20,161,013.40x = 599,517,060,652,768.88
  5. Step 5: Solve for x
    x = 599,517,060,652,768.88/20,161,013.40
  6. Step 6: Final answer
    x = 29,736,454.65

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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.