Home / 20,440,131.19-30,666,839.78-13,644,329.40

Finding the Fourth Proportional to 20,440,131.19, 30,666,839.78 and 13,644,329.40

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Solution

The fourth proportional to 20,440,131.19, 30,666,839.78 and 13,644,329.40 is: 20,470,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,131.19 : 30,666,839.78 = 13,644,329.40 : x
  2. Step 2: Convert to fraction form
    20,440,131.19/30,666,839.78 = 13,644,329.40/x
  3. Step 3: Cross multiply
    20,440,131.19x = 30,666,839.78 × 13,644,329.40
  4. Step 4: Simplify right side
    20,440,131.19x = 418,428,463,649,454.38
  5. Step 5: Solve for x
    x = 418,428,463,649,454.38/20,440,131.19
  6. Step 6: Final answer
    x = 20,470,928.48

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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.