Home / 20,776,003.70-31,164,005.55-20,477,405.30

Finding the Fourth Proportional to 20,776,003.70, 31,164,005.55 and 20,477,405.30

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Solution

The fourth proportional to 20,776,003.70, 31,164,005.55 and 20,477,405.30 is: 30,716,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,003.70 : 31,164,005.55 = 20,477,405.30 : x
  2. Step 2: Convert to fraction form
    20,776,003.70/31,164,005.55 = 20,477,405.30/x
  3. Step 3: Cross multiply
    20,776,003.70x = 31,164,005.55 × 20,477,405.30
  4. Step 4: Simplify right side
    20,776,003.70x = 638,157,972,418,799.50
  5. Step 5: Solve for x
    x = 638,157,972,418,799.50/20,776,003.70
  6. Step 6: Final answer
    x = 30,716,107.95

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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.