Home / 21,150,720.66-31,726,190.47-9,628,129.71

Finding the Fourth Proportional to 21,150,720.66, 31,726,190.47 and 9,628,129.71

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Solution

The fourth proportional to 21,150,720.66, 31,726,190.47 and 9,628,129.71 is: 14,442,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,720.66 : 31,726,190.47 = 9,628,129.71 : x
  2. Step 2: Convert to fraction form
    21,150,720.66/31,726,190.47 = 9,628,129.71/x
  3. Step 3: Cross multiply
    21,150,720.66x = 31,726,190.47 × 9,628,129.71
  4. Step 4: Simplify right side
    21,150,720.66x = 305,463,876,890,694.88
  5. Step 5: Solve for x
    x = 305,463,876,890,694.88/21,150,720.66
  6. Step 6: Final answer
    x = 14,442,244.40

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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.