Home / 90,318,120.86-124,629,010.95-50,083,105.15

Finding the Fourth Proportional to 90,318,120.86, 124,629,010.95 and 50,083,105.15

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Solution

The fourth proportional to 90,318,120.86, 124,629,010.95 and 50,083,105.15 is: 69,109,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318,120.86 : 124,629,010.95 = 50,083,105.15 : x
  2. Step 2: Convert to fraction form
    90,318,120.86/124,629,010.95 = 50,083,105.15/x
  3. Step 3: Cross multiply
    90,318,120.86x = 124,629,010.95 × 50,083,105.15
  4. Step 4: Simplify right side
    90,318,120.86x = 6,241,807,859,275,791
  5. Step 5: Solve for x
    x = 6,241,807,859,275,791/90,318,120.86
  6. Step 6: Final answer
    x = 69,109,142.22

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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.