Home / 100,294,697.34-138,436,072.11-65,492,791.38

Finding the Fourth Proportional to 100,294,697.34, 138,436,072.11 and 65,492,791.38

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Solution

The fourth proportional to 100,294,697.34, 138,436,072.11 and 65,492,791.38 is: 90,399,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,294,697.34 : 138,436,072.11 = 65,492,791.38 : x
  2. Step 2: Convert to fraction form
    100,294,697.34/138,436,072.11 = 65,492,791.38/x
  3. Step 3: Cross multiply
    100,294,697.34x = 138,436,072.11 × 65,492,791.38
  4. Step 4: Simplify right side
    100,294,697.34x = 9,066,564,790,166,868
  5. Step 5: Solve for x
    x = 9,066,564,790,166,868/100,294,697.34
  6. Step 6: Final answer
    x = 90,399,243.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.