Home / 15,989,313.79-22,065,319.09-8,647,146.78

Finding the Fourth Proportional to 15,989,313.79, 22,065,319.09 and 8,647,146.78

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Solution

The fourth proportional to 15,989,313.79, 22,065,319.09 and 8,647,146.78 is: 11,933,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989,313.79 : 22,065,319.09 = 8,647,146.78 : x
  2. Step 2: Convert to fraction form
    15,989,313.79/22,065,319.09 = 8,647,146.78/x
  3. Step 3: Cross multiply
    15,989,313.79x = 22,065,319.09 × 8,647,146.78
  4. Step 4: Simplify right side
    15,989,313.79x = 190,802,052,918,766
  5. Step 5: Solve for x
    x = 190,802,052,918,766/15,989,313.79
  6. Step 6: Final answer
    x = 11,933,098.28

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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.