Home / 20,832,568.20-31,269,021.30-10,057,429.80

Finding the Fourth Proportional to 20,832,568.20, 31,269,021.30 and 10,057,429.80

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Solution

The fourth proportional to 20,832,568.20, 31,269,021.30 and 10,057,429.80 is: 15,095,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,568.20 : 31,269,021.30 = 10,057,429.80 : x
  2. Step 2: Convert to fraction form
    20,832,568.20/31,269,021.30 = 10,057,429.80/x
  3. Step 3: Cross multiply
    20,832,568.20x = 31,269,021.30 × 10,057,429.80
  4. Step 4: Simplify right side
    20,832,568.20x = 314,485,986,639,454.75
  5. Step 5: Solve for x
    x = 314,485,986,639,454.75/20,832,568.20
  6. Step 6: Final answer
    x = 15,095,881.78

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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.