Home / 85,394,378.31-128,099,441.88-27,886,950.87

Finding the Fourth Proportional to 85,394,378.31, 128,099,441.88 and 27,886,950.87

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Solution

The fourth proportional to 85,394,378.31, 128,099,441.88 and 27,886,950.87 is: 41,832,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,394,378.31 : 128,099,441.88 = 27,886,950.87 : x
  2. Step 2: Convert to fraction form
    85,394,378.31/128,099,441.88 = 27,886,950.87/x
  3. Step 3: Cross multiply
    85,394,378.31x = 128,099,441.88 × 27,886,950.87
  4. Step 4: Simplify right side
    85,394,378.31x = 3,572,302,842,181,980.50
  5. Step 5: Solve for x
    x = 3,572,302,842,181,980.50/85,394,378.31
  6. Step 6: Final answer
    x = 41,832,997.83

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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.