Home / 215,100,719,945.84-296,865,022,986.82-122,424,107,420.25

Finding the Fourth Proportional to 215,100,719,945.84, 296,865,022,986.82 and 122,424,107,420.25

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Solution

The fourth proportional to 215,100,719,945.84, 296,865,022,986.82 and 122,424,107,420.25 is: 168,960,082,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,100,719,945.84 : 296,865,022,986.82 = 122,424,107,420.25 : x
  2. Step 2: Convert to fraction form
    215,100,719,945.84/296,865,022,986.82 = 122,424,107,420.25/x
  3. Step 3: Cross multiply
    215,100,719,945.84x = 296,865,022,986.82 × 122,424,107,420.25
  4. Step 4: Simplify right side
    215,100,719,945.84x = 36,343,435,463,453,436,805,120
  5. Step 5: Solve for x
    x = 36,343,435,463,453,436,805,120/215,100,719,945.84
  6. Step 6: Final answer
    x = 168,960,082,851.44

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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.