Home / 85,190,965.60-127,786,448.40-52,942,338.40

Finding the Fourth Proportional to 85,190,965.60, 127,786,448.40 and 52,942,338.40

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Solution

The fourth proportional to 85,190,965.60, 127,786,448.40 and 52,942,338.40 is: 79,413,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190,965.60 : 127,786,448.40 = 52,942,338.40 : x
  2. Step 2: Convert to fraction form
    85,190,965.60/127,786,448.40 = 52,942,338.40/x
  3. Step 3: Cross multiply
    85,190,965.60x = 127,786,448.40 × 52,942,338.40
  4. Step 4: Simplify right side
    85,190,965.60x = 6,765,313,394,126,939
  5. Step 5: Solve for x
    x = 6,765,313,394,126,939/85,190,965.60
  6. Step 6: Final answer
    x = 79,413,507.60

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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.