Home / 85,394,455.32-128,099,557.38-27,887,027.88

Finding the Fourth Proportional to 85,394,455.32, 128,099,557.38 and 27,887,027.88

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Solution

The fourth proportional to 85,394,455.32, 128,099,557.38 and 27,887,027.88 is: 41,833,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,394,455.32 : 128,099,557.38 = 27,887,027.88 : x
  2. Step 2: Convert to fraction form
    85,394,455.32/128,099,557.38 = 27,887,027.88/x
  3. Step 3: Cross multiply
    85,394,455.32x = 128,099,557.38 × 27,887,027.88
  4. Step 4: Simplify right side
    85,394,455.32x = 3,572,315,928,071,719.50
  5. Step 5: Solve for x
    x = 3,572,315,928,071,719.50/85,394,455.32
  6. Step 6: Final answer
    x = 41,833,113.34

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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.