Home / 208,845,499.05-288,189,918.64-120,745,175.29

Finding the Fourth Proportional to 208,845,499.05, 288,189,918.64 and 120,745,175.29

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Solution

The fourth proportional to 208,845,499.05, 288,189,918.64 and 120,745,175.29 is: 166,618,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845,499.05 : 288,189,918.64 = 120,745,175.29 : x
  2. Step 2: Convert to fraction form
    208,845,499.05/288,189,918.64 = 120,745,175.29/x
  3. Step 3: Cross multiply
    208,845,499.05x = 288,189,918.64 × 120,745,175.29
  4. Step 4: Simplify right side
    208,845,499.05x = 34,797,542,242,997,640
  5. Step 5: Solve for x
    x = 34,797,542,242,997,640/208,845,499.05
  6. Step 6: Final answer
    x = 166,618,588.39

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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.