Home / 77,530,217.86-106,992,418.17-42,724,153.90

Finding the Fourth Proportional to 77,530,217.86, 106,992,418.17 and 42,724,153.90

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Solution

The fourth proportional to 77,530,217.86, 106,992,418.17 and 42,724,153.90 is: 58,959,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530,217.86 : 106,992,418.17 = 42,724,153.90 : x
  2. Step 2: Convert to fraction form
    77,530,217.86/106,992,418.17 = 42,724,153.90/x
  3. Step 3: Cross multiply
    77,530,217.86x = 106,992,418.17 × 42,724,153.90
  4. Step 4: Simplify right side
    77,530,217.86x = 4,571,160,540,028,236
  5. Step 5: Solve for x
    x = 4,571,160,540,028,236/77,530,217.86
  6. Step 6: Final answer
    x = 58,959,727.78

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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.