Home / 80,848,468.20-121,277,951.10-42,584,716.20

Finding the Fourth Proportional to 80,848,468.20, 121,277,951.10 and 42,584,716.20

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Solution

The fourth proportional to 80,848,468.20, 121,277,951.10 and 42,584,716.20 is: 63,879,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848,468.20 : 121,277,951.10 = 42,584,716.20 : x
  2. Step 2: Convert to fraction form
    80,848,468.20/121,277,951.10 = 42,584,716.20/x
  3. Step 3: Cross multiply
    80,848,468.20x = 121,277,951.10 × 42,584,716.20
  4. Step 4: Simplify right side
    80,848,468.20x = 5,164,587,128,910,978
  5. Step 5: Solve for x
    x = 5,164,587,128,910,978/80,848,468.20
  6. Step 6: Final answer
    x = 63,879,838.96

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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.