Home / 143,678,865-215,520,163.74-47,940,753

Finding the Fourth Proportional to 143,678,865, 215,520,163.74 and 47,940,753

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Solution

The fourth proportional to 143,678,865, 215,520,163.74 and 47,940,753 is: 71,911,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,678,865 : 215,520,163.74 = 47,940,753 : x
  2. Step 2: Convert to fraction form
    143,678,865/215,520,163.74 = 47,940,753/x
  3. Step 3: Cross multiply
    143,678,865x = 215,520,163.74 × 47,940,753
  4. Step 4: Simplify right side
    143,678,865x = 10,332,198,936,378,896
  5. Step 5: Solve for x
    x = 10,332,198,936,378,896/143,678,865
  6. Step 6: Final answer
    x = 71,911,752.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.