Home / 85,897,986.72-128,830,350.97-33,375,568.14

Finding the Fourth Proportional to 85,897,986.72, 128,830,350.97 and 33,375,568.14

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Solution

The fourth proportional to 85,897,986.72, 128,830,350.97 and 33,375,568.14 is: 50,056,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,897,986.72 : 128,830,350.97 = 33,375,568.14 : x
  2. Step 2: Convert to fraction form
    85,897,986.72/128,830,350.97 = 33,375,568.14/x
  3. Step 3: Cross multiply
    85,897,986.72x = 128,830,350.97 × 33,375,568.14
  4. Step 4: Simplify right side
    85,897,986.72x = 4,299,786,156,571,759.50
  5. Step 5: Solve for x
    x = 4,299,786,156,571,759.50/85,897,986.72
  6. Step 6: Final answer
    x = 50,056,890.98

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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.