Home / 139,703,474.85-192,782,108.63-76,976,062.51

Finding the Fourth Proportional to 139,703,474.85, 192,782,108.63 and 76,976,062.51

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Solution

The fourth proportional to 139,703,474.85, 192,782,108.63 and 76,976,062.51 is: 106,222,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,703,474.85 : 192,782,108.63 = 76,976,062.51 : x
  2. Step 2: Convert to fraction form
    139,703,474.85/192,782,108.63 = 76,976,062.51/x
  3. Step 3: Cross multiply
    139,703,474.85x = 192,782,108.63 × 76,976,062.51
  4. Step 4: Simplify right side
    139,703,474.85x = 14,839,607,644,327,612
  5. Step 5: Solve for x
    x = 14,839,607,644,327,612/139,703,474.85
  6. Step 6: Final answer
    x = 106,222,179.95

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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.