Home / 74,015,138.27-102,151,574.78-42,647,179.55

Finding the Fourth Proportional to 74,015,138.27, 102,151,574.78 and 42,647,179.55

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Solution

The fourth proportional to 74,015,138.27, 102,151,574.78 and 42,647,179.55 is: 58,859,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015,138.27 : 102,151,574.78 = 42,647,179.55 : x
  2. Step 2: Convert to fraction form
    74,015,138.27/102,151,574.78 = 42,647,179.55/x
  3. Step 3: Cross multiply
    74,015,138.27x = 102,151,574.78 × 42,647,179.55
  4. Step 4: Simplify right side
    74,015,138.27x = 4,356,476,550,957,911.50
  5. Step 5: Solve for x
    x = 4,356,476,550,957,911.50/74,015,138.27
  6. Step 6: Final answer
    x = 58,859,263.83

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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.