Home / 21,538,133.75-32,307,482.03-7,161,201.56

Finding the Fourth Proportional to 21,538,133.75, 32,307,482.03 and 7,161,201.56

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Solution

The fourth proportional to 21,538,133.75, 32,307,482.03 and 7,161,201.56 is: 10,741,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,133.75 : 32,307,482.03 = 7,161,201.56 : x
  2. Step 2: Convert to fraction form
    21,538,133.75/32,307,482.03 = 7,161,201.56/x
  3. Step 3: Cross multiply
    21,538,133.75x = 32,307,482.03 × 7,161,201.56
  4. Step 4: Simplify right side
    21,538,133.75x = 231,360,390,712,907.97
  5. Step 5: Solve for x
    x = 231,360,390,712,907.97/21,538,133.75
  6. Step 6: Final answer
    x = 10,741,895.90

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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.