Home / 139,703,473.09-192,782,106.21-76,976,060.76

Finding the Fourth Proportional to 139,703,473.09, 192,782,106.21 and 76,976,060.76

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Solution

The fourth proportional to 139,703,473.09, 192,782,106.21 and 76,976,060.76 is: 106,222,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,703,473.09 : 192,782,106.21 = 76,976,060.76 : x
  2. Step 2: Convert to fraction form
    139,703,473.09/192,782,106.21 = 76,976,060.76/x
  3. Step 3: Cross multiply
    139,703,473.09x = 192,782,106.21 × 76,976,060.76
  4. Step 4: Simplify right side
    139,703,473.09x = 14,839,607,121,061,734
  5. Step 5: Solve for x
    x = 14,839,607,121,061,734/139,703,473.09
  6. Step 6: Final answer
    x = 106,222,177.54

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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.