Home / 85,367,941.72-117,690,682.26-53,990,351.80

Finding the Fourth Proportional to 85,367,941.72, 117,690,682.26 and 53,990,351.80

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Solution

The fourth proportional to 85,367,941.72, 117,690,682.26 and 53,990,351.80 is: 74,432,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,367,941.72 : 117,690,682.26 = 53,990,351.80 : x
  2. Step 2: Convert to fraction form
    85,367,941.72/117,690,682.26 = 53,990,351.80/x
  3. Step 3: Cross multiply
    85,367,941.72x = 117,690,682.26 × 53,990,351.80
  4. Step 4: Simplify right side
    85,367,941.72x = 6,354,161,338,799,419
  5. Step 5: Solve for x
    x = 6,354,161,338,799,419/85,367,941.72
  6. Step 6: Final answer
    x = 74,432,640.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.