Home / 20,945,218.20-31,417,827.30-19,433,563.80

Finding the Fourth Proportional to 20,945,218.20, 31,417,827.30 and 19,433,563.80

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Solution

The fourth proportional to 20,945,218.20, 31,417,827.30 and 19,433,563.80 is: 29,150,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945,218.20 : 31,417,827.30 = 19,433,563.80 : x
  2. Step 2: Convert to fraction form
    20,945,218.20/31,417,827.30 = 19,433,563.80/x
  3. Step 3: Cross multiply
    20,945,218.20x = 31,417,827.30 × 19,433,563.80
  4. Step 4: Simplify right side
    20,945,218.20x = 610,560,351,291,931.75
  5. Step 5: Solve for x
    x = 610,560,351,291,931.75/20,945,218.20
  6. Step 6: Final answer
    x = 29,150,345.70

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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.