Home / 113,570,520.40-170,355,780.60-81,321,893.20

Finding the Fourth Proportional to 113,570,520.40, 170,355,780.60 and 81,321,893.20

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Solution

The fourth proportional to 113,570,520.40, 170,355,780.60 and 81,321,893.20 is: 121,982,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,570,520.40 : 170,355,780.60 = 81,321,893.20 : x
  2. Step 2: Convert to fraction form
    113,570,520.40/170,355,780.60 = 81,321,893.20/x
  3. Step 3: Cross multiply
    113,570,520.40x = 170,355,780.60 × 81,321,893.20
  4. Step 4: Simplify right side
    113,570,520.40x = 13,853,654,595,955,832
  5. Step 5: Solve for x
    x = 13,853,654,595,955,832/113,570,520.40
  6. Step 6: Final answer
    x = 121,982,839.80

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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.