Home / 20,161,015.40-30,304,508.70-19,783,101.80

Finding the Fourth Proportional to 20,161,015.40, 30,304,508.70 and 19,783,101.80

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Solution

The fourth proportional to 20,161,015.40, 30,304,508.70 and 19,783,101.80 is: 29,736,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,015.40 : 30,304,508.70 = 19,783,101.80 : x
  2. Step 2: Convert to fraction form
    20,161,015.40/30,304,508.70 = 19,783,101.80/x
  3. Step 3: Cross multiply
    20,161,015.40x = 30,304,508.70 × 19,783,101.80
  4. Step 4: Simplify right side
    20,161,015.40x = 599,517,180,611,085.62
  5. Step 5: Solve for x
    x = 599,517,180,611,085.62/20,161,015.40
  6. Step 6: Final answer
    x = 29,736,457.65

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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.