Home / 15,106,721.06-20,847,278.31-8,231,203.19

Finding the Fourth Proportional to 15,106,721.06, 20,847,278.31 and 8,231,203.19

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Solution

The fourth proportional to 15,106,721.06, 20,847,278.31 and 8,231,203.19 is: 11,359,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106,721.06 : 20,847,278.31 = 8,231,203.19 : x
  2. Step 2: Convert to fraction form
    15,106,721.06/20,847,278.31 = 8,231,203.19/x
  3. Step 3: Cross multiply
    15,106,721.06x = 20,847,278.31 × 8,231,203.19
  4. Step 4: Simplify right side
    15,106,721.06x = 171,598,183,728,089.81
  5. Step 5: Solve for x
    x = 171,598,183,728,089.81/15,106,721.06
  6. Step 6: Final answer
    x = 11,359,062.17

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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.