Home / 20,769,772.82-31,161,580.68-13,084,545.20

Finding the Fourth Proportional to 20,769,772.82, 31,161,580.68 and 13,084,545.20

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Solution

The fourth proportional to 20,769,772.82, 31,161,580.68 and 13,084,545.20 is: 19,631,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,772.82 : 31,161,580.68 = 13,084,545.20 : x
  2. Step 2: Convert to fraction form
    20,769,772.82/31,161,580.68 = 13,084,545.20/x
  3. Step 3: Cross multiply
    20,769,772.82x = 31,161,580.68 × 13,084,545.20
  4. Step 4: Simplify right side
    20,769,772.82x = 407,735,110,910,906.69
  5. Step 5: Solve for x
    x = 407,735,110,910,906.69/20,769,772.82
  6. Step 6: Final answer
    x = 19,631,178.18

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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.