Home / 51,009,102.72-76,513,998.60-18,647,692.56

Finding the Fourth Proportional to 51,009,102.72, 76,513,998.60 and 18,647,692.56

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Solution

The fourth proportional to 51,009,102.72, 76,513,998.60 and 18,647,692.56 is: 27,971,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009,102.72 : 76,513,998.60 = 18,647,692.56 : x
  2. Step 2: Convert to fraction form
    51,009,102.72/76,513,998.60 = 18,647,692.56/x
  3. Step 3: Cross multiply
    51,009,102.72x = 76,513,998.60 × 18,647,692.56
  4. Step 4: Simplify right side
    51,009,102.72x = 1,426,809,522,429,070.25
  5. Step 5: Solve for x
    x = 1,426,809,522,429,070.25/51,009,102.72
  6. Step 6: Final answer
    x = 27,971,664.79

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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.