Home / 69,847,039.53-96,391,100.07-40,083,132.78

Finding the Fourth Proportional to 69,847,039.53, 96,391,100.07 and 40,083,132.78

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Solution

The fourth proportional to 69,847,039.53, 96,391,100.07 and 40,083,132.78 is: 55,315,977.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,847,039.53 : 96,391,100.07 = 40,083,132.78 : x
  2. Step 2: Convert to fraction form
    69,847,039.53/96,391,100.07 = 40,083,132.78/x
  3. Step 3: Cross multiply
    69,847,039.53x = 96,391,100.07 × 40,083,132.78
  4. Step 4: Simplify right side
    69,847,039.53x = 3,863,657,262,916,077
  5. Step 5: Solve for x
    x = 3,863,657,262,916,077/69,847,039.53
  6. Step 6: Final answer
    x = 55,315,977.44

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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.