Home / 28,431,278.67-39,231,792.82-16,040,649.75

Finding the Fourth Proportional to 28,431,278.67, 39,231,792.82 and 16,040,649.75

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Solution

The fourth proportional to 28,431,278.67, 39,231,792.82 and 16,040,649.75 is: 22,134,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,278.67 : 39,231,792.82 = 16,040,649.75 : x
  2. Step 2: Convert to fraction form
    28,431,278.67/39,231,792.82 = 16,040,649.75/x
  3. Step 3: Cross multiply
    28,431,278.67x = 39,231,792.82 × 16,040,649.75
  4. Step 4: Simplify right side
    28,431,278.67x = 629,303,447,563,116.38
  5. Step 5: Solve for x
    x = 629,303,447,563,116.38/28,431,278.67
  6. Step 6: Final answer
    x = 22,134,194.34

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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.