Home / 393,983,999.10-590,975,998.65-388,609,227.90

Finding the Fourth Proportional to 393,983,999.10, 590,975,998.65 and 388,609,227.90

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Solution

The fourth proportional to 393,983,999.10, 590,975,998.65 and 388,609,227.90 is: 582,913,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,983,999.10 : 590,975,998.65 = 388,609,227.90 : x
  2. Step 2: Convert to fraction form
    393,983,999.10/590,975,998.65 = 388,609,227.90/x
  3. Step 3: Cross multiply
    393,983,999.10x = 590,975,998.65 × 388,609,227.90
  4. Step 4: Simplify right side
    393,983,999.10x = 229,658,726,542,807,904
  5. Step 5: Solve for x
    x = 229,658,726,542,807,904/393,983,999.10
  6. Step 6: Final answer
    x = 582,913,841.85

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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.