Home / 419,908,083.60-629,862,125.40-258,440,998.80

Finding the Fourth Proportional to 419,908,083.60, 629,862,125.40 and 258,440,998.80

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Solution

The fourth proportional to 419,908,083.60, 629,862,125.40 and 258,440,998.80 is: 387,661,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,908,083.60 : 629,862,125.40 = 258,440,998.80 : x
  2. Step 2: Convert to fraction form
    419,908,083.60/629,862,125.40 = 258,440,998.80/x
  3. Step 3: Cross multiply
    419,908,083.60x = 629,862,125.40 × 258,440,998.80
  4. Step 4: Simplify right side
    419,908,083.60x = 162,782,196,794,666,848
  5. Step 5: Solve for x
    x = 162,782,196,794,666,848/419,908,083.60
  6. Step 6: Final answer
    x = 387,661,498.20

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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.