Home / 131,180,839.40-196,890,231.90-66,529,620.20

Finding the Fourth Proportional to 131,180,839.40, 196,890,231.90 and 66,529,620.20

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Solution

The fourth proportional to 131,180,839.40, 196,890,231.90 and 66,529,620.20 is: 99,854,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,180,839.40 : 196,890,231.90 = 66,529,620.20 : x
  2. Step 2: Convert to fraction form
    131,180,839.40/196,890,231.90 = 66,529,620.20/x
  3. Step 3: Cross multiply
    131,180,839.40x = 196,890,231.90 × 66,529,620.20
  4. Step 4: Simplify right side
    131,180,839.40x = 13,099,032,349,396,926
  5. Step 5: Solve for x
    x = 13,099,032,349,396,926/131,180,839.40
  6. Step 6: Final answer
    x = 99,854,768.50

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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.