Home / 20,681,238.80-31,021,858.20-5,535,170.30

Finding the Fourth Proportional to 20,681,238.80, 31,021,858.20 and 5,535,170.30

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Solution

The fourth proportional to 20,681,238.80, 31,021,858.20 and 5,535,170.30 is: 8,302,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,238.80 : 31,021,858.20 = 5,535,170.30 : x
  2. Step 2: Convert to fraction form
    20,681,238.80/31,021,858.20 = 5,535,170.30/x
  3. Step 3: Cross multiply
    20,681,238.80x = 31,021,858.20 × 5,535,170.30
  4. Step 4: Simplify right side
    20,681,238.80x = 171,711,268,159,451.44
  5. Step 5: Solve for x
    x = 171,711,268,159,451.44/20,681,238.80
  6. Step 6: Final answer
    x = 8,302,755.45

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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.