Home / 20,827,711.87-31,114,911.29-13,481,327.36

Finding the Fourth Proportional to 20,827,711.87, 31,114,911.29 and 13,481,327.36

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Solution

The fourth proportional to 20,827,711.87, 31,114,911.29 and 13,481,327.36 is: 20,140,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827,711.87 : 31,114,911.29 = 13,481,327.36 : x
  2. Step 2: Convert to fraction form
    20,827,711.87/31,114,911.29 = 13,481,327.36/x
  3. Step 3: Cross multiply
    20,827,711.87x = 31,114,911.29 × 13,481,327.36
  4. Step 4: Simplify right side
    20,827,711.87x = 419,470,304,888,230.56
  5. Step 5: Solve for x
    x = 419,470,304,888,230.56/20,827,711.87
  6. Step 6: Final answer
    x = 20,140,009.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.