Home / 74,015,138.52-102,151,575.12-42,647,179.80

Finding the Fourth Proportional to 74,015,138.52, 102,151,575.12 and 42,647,179.80

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Solution

The fourth proportional to 74,015,138.52, 102,151,575.12 and 42,647,179.80 is: 58,859,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015,138.52 : 102,151,575.12 = 42,647,179.80 : x
  2. Step 2: Convert to fraction form
    74,015,138.52/102,151,575.12 = 42,647,179.80/x
  3. Step 3: Cross multiply
    74,015,138.52x = 102,151,575.12 × 42,647,179.80
  4. Step 4: Simplify right side
    74,015,138.52x = 4,356,476,590,995,846.50
  5. Step 5: Solve for x
    x = 4,356,476,590,995,846.50/74,015,138.52
  6. Step 6: Final answer
    x = 58,859,264.17

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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.