Home / 21,150,721.46-31,726,191.66-9,628,130.51

Finding the Fourth Proportional to 21,150,721.46, 31,726,191.66 and 9,628,130.51

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Solution

The fourth proportional to 21,150,721.46, 31,726,191.66 and 9,628,130.51 is: 14,442,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,721.46 : 31,726,191.66 = 9,628,130.51 : x
  2. Step 2: Convert to fraction form
    21,150,721.46/31,726,191.66 = 9,628,130.51/x
  3. Step 3: Cross multiply
    21,150,721.46x = 31,726,191.66 × 9,628,130.51
  4. Step 4: Simplify right side
    21,150,721.46x = 305,463,913,729,122.62
  5. Step 5: Solve for x
    x = 305,463,913,729,122.62/21,150,721.46
  6. Step 6: Final answer
    x = 14,442,245.59

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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.