Home / 203,487,468.78-305,367,265.56-86,930,063.94

Finding the Fourth Proportional to 203,487,468.78, 305,367,265.56 and 86,930,063.94

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Solution

The fourth proportional to 203,487,468.78, 305,367,265.56 and 86,930,063.94 is: 130,453,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487,468.78 : 305,367,265.56 = 86,930,063.94 : x
  2. Step 2: Convert to fraction form
    203,487,468.78/305,367,265.56 = 86,930,063.94/x
  3. Step 3: Cross multiply
    203,487,468.78x = 305,367,265.56 × 86,930,063.94
  4. Step 4: Simplify right side
    203,487,468.78x = 26,545,595,920,313,760
  5. Step 5: Solve for x
    x = 26,545,595,920,313,760/203,487,468.78
  6. Step 6: Final answer
    x = 130,453,221.91

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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.