Home / 20,380,027.77-28,124,560.64-11,087,664.50

Finding the Fourth Proportional to 20,380,027.77, 28,124,560.64 and 11,087,664.50

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Solution

The fourth proportional to 20,380,027.77, 28,124,560.64 and 11,087,664.50 is: 15,301,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380,027.77 : 28,124,560.64 = 11,087,664.50 : x
  2. Step 2: Convert to fraction form
    20,380,027.77/28,124,560.64 = 11,087,664.50/x
  3. Step 3: Cross multiply
    20,380,027.77x = 28,124,560.64 × 11,087,664.50
  4. Step 4: Simplify right side
    20,380,027.77x = 311,835,692,601,098.38
  5. Step 5: Solve for x
    x = 311,835,692,601,098.38/20,380,027.77
  6. Step 6: Final answer
    x = 15,301,043.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.