Home / 258,067,404.40-387,092,812.20-85,552,178.80

Finding the Fourth Proportional to 258,067,404.40, 387,092,812.20 and 85,552,178.80

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Solution

The fourth proportional to 258,067,404.40, 387,092,812.20 and 85,552,178.80 is: 128,325,518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,067,404.40 : 387,092,812.20 = 85,552,178.80 : x
  2. Step 2: Convert to fraction form
    258,067,404.40/387,092,812.20 = 85,552,178.80/x
  3. Step 3: Cross multiply
    258,067,404.40x = 387,092,812.20 × 85,552,178.80
  4. Step 4: Simplify right side
    258,067,404.40x = 33,116,633,481,529,220
  5. Step 5: Solve for x
    x = 33,116,633,481,529,220/258,067,404.40
  6. Step 6: Final answer
    x = 128,325,518.52

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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.