Home / 639,576,021.20-959,084,095.80-294,414,933.20

Finding the Fourth Proportional to 639,576,021.20, 959,084,095.80 and 294,414,933.20

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Solution

The fourth proportional to 639,576,021.20, 959,084,095.80 and 294,414,933.20 is: 441,493,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,021.20 : 959,084,095.80 = 294,414,933.20 : x
  2. Step 2: Convert to fraction form
    639,576,021.20/959,084,095.80 = 294,414,933.20/x
  3. Step 3: Cross multiply
    639,576,021.20x = 959,084,095.80 × 294,414,933.20
  4. Step 4: Simplify right side
    639,576,021.20x = 282,368,679,998,139,360
  5. Step 5: Solve for x
    x = 282,368,679,998,139,360/639,576,021.20
  6. Step 6: Final answer
    x = 441,493,537.34

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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.