Home / 78,171,383.38-117,180,823.94-37,219,819.32

Finding the Fourth Proportional to 78,171,383.38, 117,180,823.94 and 37,219,819.32

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Solution

The fourth proportional to 78,171,383.38, 117,180,823.94 and 37,219,819.32 is: 55,793,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,383.38 : 117,180,823.94 = 37,219,819.32 : x
  2. Step 2: Convert to fraction form
    78,171,383.38/117,180,823.94 = 37,219,819.32/x
  3. Step 3: Cross multiply
    78,171,383.38x = 117,180,823.94 × 37,219,819.32
  4. Step 4: Simplify right side
    78,171,383.38x = 4,361,449,094,815,530.50
  5. Step 5: Solve for x
    x = 4,361,449,094,815,530.50/78,171,383.38
  6. Step 6: Final answer
    x = 55,793,423.45

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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.