Home / 21,322,876.71-31,984,290.29-6,945,921.43

Finding the Fourth Proportional to 21,322,876.71, 31,984,290.29 and 6,945,921.43

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Solution

The fourth proportional to 21,322,876.71, 31,984,290.29 and 6,945,921.43 is: 10,418,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322,876.71 : 31,984,290.29 = 6,945,921.43 : x
  2. Step 2: Convert to fraction form
    21,322,876.71/31,984,290.29 = 6,945,921.43/x
  3. Step 3: Cross multiply
    21,322,876.71x = 31,984,290.29 × 6,945,921.43
  4. Step 4: Simplify right side
    21,322,876.71x = 222,160,367,313,922.31
  5. Step 5: Solve for x
    x = 222,160,367,313,922.31/21,322,876.71
  6. Step 6: Final answer
    x = 10,418,874.08

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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.