Home / 85,532,659.46-128,311,792.58-30,958,013.80

Finding the Fourth Proportional to 85,532,659.46, 128,311,792.58 and 30,958,013.80

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Solution

The fourth proportional to 85,532,659.46, 128,311,792.58 and 30,958,013.80 is: 46,441,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532,659.46 : 128,311,792.58 = 30,958,013.80 : x
  2. Step 2: Convert to fraction form
    85,532,659.46/128,311,792.58 = 30,958,013.80/x
  3. Step 3: Cross multiply
    85,532,659.46x = 128,311,792.58 × 30,958,013.80
  4. Step 4: Simplify right side
    85,532,659.46x = 3,972,278,245,643,307
  5. Step 5: Solve for x
    x = 3,972,278,245,643,307/85,532,659.46
  6. Step 6: Final answer
    x = 46,441,654.81

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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.