Home / 85,978,261.67-118,646,884.21-52,543,676.82

Finding the Fourth Proportional to 85,978,261.67, 118,646,884.21 and 52,543,676.82

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Solution

The fourth proportional to 85,978,261.67, 118,646,884.21 and 52,543,676.82 is: 72,508,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,978,261.67 : 118,646,884.21 = 52,543,676.82 : x
  2. Step 2: Convert to fraction form
    85,978,261.67/118,646,884.21 = 52,543,676.82/x
  3. Step 3: Cross multiply
    85,978,261.67x = 118,646,884.21 × 52,543,676.82
  4. Step 4: Simplify right side
    85,978,261.67x = 6,234,143,539,729,779
  5. Step 5: Solve for x
    x = 6,234,143,539,729,779/85,978,261.67
  6. Step 6: Final answer
    x = 72,508,369.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.