Home / 20,954,777.40-31,468,032.90-11,388,839.40

Finding the Fourth Proportional to 20,954,777.40, 31,468,032.90 and 11,388,839.40

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Solution

The fourth proportional to 20,954,777.40, 31,468,032.90 and 11,388,839.40 is: 17,102,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,777.40 : 31,468,032.90 = 11,388,839.40 : x
  2. Step 2: Convert to fraction form
    20,954,777.40/31,468,032.90 = 11,388,839.40/x
  3. Step 3: Cross multiply
    20,954,777.40x = 31,468,032.90 × 11,388,839.40
  4. Step 4: Simplify right side
    20,954,777.40x = 358,384,372,932,016.25
  5. Step 5: Solve for x
    x = 358,384,372,932,016.25/20,954,777.40
  6. Step 6: Final answer
    x = 17,102,752.57

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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.