Home / 90,505,387.80-135,758,771.82-25,809,139.08

Finding the Fourth Proportional to 90,505,387.80, 135,758,771.82 and 25,809,139.08

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Solution

The fourth proportional to 90,505,387.80, 135,758,771.82 and 25,809,139.08 is: 38,713,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,505,387.80 : 135,758,771.82 = 25,809,139.08 : x
  2. Step 2: Convert to fraction form
    90,505,387.80/135,758,771.82 = 25,809,139.08/x
  3. Step 3: Cross multiply
    90,505,387.80x = 135,758,771.82 × 25,809,139.08
  4. Step 4: Simplify right side
    90,505,387.80x = 3,503,817,023,232,364.50
  5. Step 5: Solve for x
    x = 3,503,817,023,232,364.50/90,505,387.80
  6. Step 6: Final answer
    x = 38,713,905.42

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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.