Home / 20,839,327.80-31,256,154.03-5,485,331.72

Finding the Fourth Proportional to 20,839,327.80, 31,256,154.03 and 5,485,331.72

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Solution

The fourth proportional to 20,839,327.80, 31,256,154.03 and 5,485,331.72 is: 8,227,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,327.80 : 31,256,154.03 = 5,485,331.72 : x
  2. Step 2: Convert to fraction form
    20,839,327.80/31,256,154.03 = 5,485,331.72/x
  3. Step 3: Cross multiply
    20,839,327.80x = 31,256,154.03 × 5,485,331.72
  4. Step 4: Simplify right side
    20,839,327.80x = 171,450,373,149,058
  5. Step 5: Solve for x
    x = 171,450,373,149,058/20,839,327.80
  6. Step 6: Final answer
    x = 8,227,250.65

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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.