Home / 74,015,137.52-102,151,573.74-42,647,178.80

Finding the Fourth Proportional to 74,015,137.52, 102,151,573.74 and 42,647,178.80

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Solution

The fourth proportional to 74,015,137.52, 102,151,573.74 and 42,647,178.80 is: 58,859,262.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015,137.52 : 102,151,573.74 = 42,647,178.80 : x
  2. Step 2: Convert to fraction form
    74,015,137.52/102,151,573.74 = 42,647,178.80/x
  3. Step 3: Cross multiply
    74,015,137.52x = 102,151,573.74 × 42,647,178.80
  4. Step 4: Simplify right side
    74,015,137.52x = 4,356,476,429,991,164
  5. Step 5: Solve for x
    x = 4,356,476,429,991,164/74,015,137.52
  6. Step 6: Final answer
    x = 58,859,262.79

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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.