Home / 215,651,306.04-323,147,798.76-128,040,299.28

Finding the Fourth Proportional to 215,651,306.04, 323,147,798.76 and 128,040,299.28

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Solution

The fourth proportional to 215,651,306.04, 323,147,798.76 and 128,040,299.28 is: 191,865,014.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,651,306.04 : 323,147,798.76 = 128,040,299.28 : x
  2. Step 2: Convert to fraction form
    215,651,306.04/323,147,798.76 = 128,040,299.28/x
  3. Step 3: Cross multiply
    215,651,306.04x = 323,147,798.76 × 128,040,299.28
  4. Step 4: Simplify right side
    215,651,306.04x = 41,375,940,864,903,616
  5. Step 5: Solve for x
    x = 41,375,940,864,903,616/215,651,306.04
  6. Step 6: Final answer
    x = 191,865,014.06

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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.