Home / 216,489,084.11-324,763,810.88-66,935,757.69

Finding the Fourth Proportional to 216,489,084.11, 324,763,810.88 and 66,935,757.69

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Solution

The fourth proportional to 216,489,084.11, 324,763,810.88 and 66,935,757.69 is: 100,412,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,489,084.11 : 324,763,810.88 = 66,935,757.69 : x
  2. Step 2: Convert to fraction form
    216,489,084.11/324,763,810.88 = 66,935,757.69/x
  3. Step 3: Cross multiply
    216,489,084.11x = 324,763,810.88 × 66,935,757.69
  4. Step 4: Simplify right side
    216,489,084.11x = 21,738,311,751,712,004
  5. Step 5: Solve for x
    x = 21,738,311,751,712,004/216,489,084.11
  6. Step 6: Final answer
    x = 100,412,969.28

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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.