Home / 21,809,554.28-30,107,130.24-15,534,121.81

Finding the Fourth Proportional to 21,809,554.28, 30,107,130.24 and 15,534,121.81

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Solution

The fourth proportional to 21,809,554.28, 30,107,130.24 and 15,534,121.81 is: 21,444,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809,554.28 : 30,107,130.24 = 15,534,121.81 : x
  2. Step 2: Convert to fraction form
    21,809,554.28/30,107,130.24 = 15,534,121.81/x
  3. Step 3: Cross multiply
    21,809,554.28x = 30,107,130.24 × 15,534,121.81
  4. Step 4: Simplify right side
    21,809,554.28x = 467,687,828,408,787.31
  5. Step 5: Solve for x
    x = 467,687,828,408,787.31/21,809,554.28
  6. Step 6: Final answer
    x = 21,444,171.78

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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.