Home / 90,318,122.86-124,629,013.70-50,083,107.15

Finding the Fourth Proportional to 90,318,122.86, 124,629,013.70 and 50,083,107.15

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Solution

The fourth proportional to 90,318,122.86, 124,629,013.70 and 50,083,107.15 is: 69,109,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318,122.86 : 124,629,013.70 = 50,083,107.15 : x
  2. Step 2: Convert to fraction form
    90,318,122.86/124,629,013.70 = 50,083,107.15/x
  3. Step 3: Cross multiply
    90,318,122.86x = 124,629,013.70 × 50,083,107.15
  4. Step 4: Simplify right side
    90,318,122.86x = 6,241,808,247,135,918
  5. Step 5: Solve for x
    x = 6,241,808,247,135,918/90,318,122.86
  6. Step 6: Final answer
    x = 69,109,144.98

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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.