Home / 20,736,080.70-31,104,121.05-19,224,426.30

Finding the Fourth Proportional to 20,736,080.70, 31,104,121.05 and 19,224,426.30

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Solution

The fourth proportional to 20,736,080.70, 31,104,121.05 and 19,224,426.30 is: 28,836,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,080.70 : 31,104,121.05 = 19,224,426.30 : x
  2. Step 2: Convert to fraction form
    20,736,080.70/31,104,121.05 = 19,224,426.30/x
  3. Step 3: Cross multiply
    20,736,080.70x = 31,104,121.05 × 19,224,426.30
  4. Step 4: Simplify right side
    20,736,080.70x = 597,958,882,752,003.62
  5. Step 5: Solve for x
    x = 597,958,882,752,003.62/20,736,080.70
  6. Step 6: Final answer
    x = 28,836,639.45

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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.