Home / 139,385,821.92-192,357,132.51-76,666,770.66

Finding the Fourth Proportional to 139,385,821.92, 192,357,132.51 and 76,666,770.66

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Solution

The fourth proportional to 139,385,821.92, 192,357,132.51 and 76,666,770.66 is: 105,802,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,385,821.92 : 192,357,132.51 = 76,666,770.66 : x
  2. Step 2: Convert to fraction form
    139,385,821.92/192,357,132.51 = 76,666,770.66/x
  3. Step 3: Cross multiply
    139,385,821.92x = 192,357,132.51 × 76,666,770.66
  4. Step 4: Simplify right side
    139,385,821.92x = 14,747,400,162,959,398
  5. Step 5: Solve for x
    x = 14,747,400,162,959,398/139,385,821.92
  6. Step 6: Final answer
    x = 105,802,727.71

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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.