Home / 78,043,230.72-117,027,906.48-28,842,947.28

Finding the Fourth Proportional to 78,043,230.72, 117,027,906.48 and 28,842,947.28

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Solution

The fourth proportional to 78,043,230.72, 117,027,906.48 and 28,842,947.28 is: 43,250,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,043,230.72 : 117,027,906.48 = 28,842,947.28 : x
  2. Step 2: Convert to fraction form
    78,043,230.72/117,027,906.48 = 28,842,947.28/x
  3. Step 3: Cross multiply
    78,043,230.72x = 117,027,906.48 × 28,842,947.28
  4. Step 4: Simplify right side
    78,043,230.72x = 3,375,429,736,891,410.50
  5. Step 5: Solve for x
    x = 3,375,429,736,891,410.50/78,043,230.72
  6. Step 6: Final answer
    x = 43,250,768.91

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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.