Home / 20,829,977.57-31,229,833.05-8,702,909.07

Finding the Fourth Proportional to 20,829,977.57, 31,229,833.05 and 8,702,909.07

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Solution

The fourth proportional to 20,829,977.57, 31,229,833.05 and 8,702,909.07 is: 13,048,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,977.57 : 31,229,833.05 = 8,702,909.07 : x
  2. Step 2: Convert to fraction form
    20,829,977.57/31,229,833.05 = 8,702,909.07/x
  3. Step 3: Cross multiply
    20,829,977.57x = 31,229,833.05 × 8,702,909.07
  4. Step 4: Simplify right side
    20,829,977.57x = 271,790,397,305,430.78
  5. Step 5: Solve for x
    x = 271,790,397,305,430.78/20,829,977.57
  6. Step 6: Final answer
    x = 13,048,040.81

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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.