Home / 259,855,662.72-389,807,454.24-84,979,603.80

Finding the Fourth Proportional to 259,855,662.72, 389,807,454.24 and 84,979,603.80

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Solution

The fourth proportional to 259,855,662.72, 389,807,454.24 and 84,979,603.80 is: 127,477,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,855,662.72 : 389,807,454.24 = 84,979,603.80 : x
  2. Step 2: Convert to fraction form
    259,855,662.72/389,807,454.24 = 84,979,603.80/x
  3. Step 3: Cross multiply
    259,855,662.72x = 389,807,454.24 × 84,979,603.80
  4. Step 4: Simplify right side
    259,855,662.72x = 33,125,683,019,601,828
  5. Step 5: Solve for x
    x = 33,125,683,019,601,828/259,855,662.72
  6. Step 6: Final answer
    x = 127,477,241.30

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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.