Home / 18,828,378-28,231,593.12-7,300,377.54

Finding the Fourth Proportional to 18,828,378, 28,231,593.12 and 7,300,377.54

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Solution

The fourth proportional to 18,828,378, 28,231,593.12 and 7,300,377.54 is: 10,946,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828,378 : 28,231,593.12 = 7,300,377.54 : x
  2. Step 2: Convert to fraction form
    18,828,378/28,231,593.12 = 7,300,377.54/x
  3. Step 3: Cross multiply
    18,828,378x = 28,231,593.12 × 7,300,377.54
  4. Step 4: Simplify right side
    18,828,378x = 206,101,288,331,666.53
  5. Step 5: Solve for x
    x = 206,101,288,331,666.53/18,828,378
  6. Step 6: Final answer
    x = 10,946,311.38

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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.