Home / 139,703,478.06-192,782,113.05-76,976,065.73

Finding the Fourth Proportional to 139,703,478.06, 192,782,113.05 and 76,976,065.73

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Solution

The fourth proportional to 139,703,478.06, 192,782,113.05 and 76,976,065.73 is: 106,222,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,703,478.06 : 192,782,113.05 = 76,976,065.73 : x
  2. Step 2: Convert to fraction form
    139,703,478.06/192,782,113.05 = 76,976,065.73/x
  3. Step 3: Cross multiply
    139,703,478.06x = 192,782,113.05 × 76,976,065.73
  4. Step 4: Simplify right side
    139,703,478.06x = 14,839,608,605,705,092
  5. Step 5: Solve for x
    x = 14,839,608,605,705,092/139,703,478.06
  6. Step 6: Final answer
    x = 106,222,184.38

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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.