Home / 393,983,998.40-590,975,997.60-178,993,150.40

Finding the Fourth Proportional to 393,983,998.40, 590,975,997.60 and 178,993,150.40

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Solution

The fourth proportional to 393,983,998.40, 590,975,997.60 and 178,993,150.40 is: 268,489,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,983,998.40 : 590,975,997.60 = 178,993,150.40 : x
  2. Step 2: Convert to fraction form
    393,983,998.40/590,975,997.60 = 178,993,150.40/x
  3. Step 3: Cross multiply
    393,983,998.40x = 590,975,997.60 × 178,993,150.40
  4. Step 4: Simplify right side
    393,983,998.40x = 105,780,655,621,206,848
  5. Step 5: Solve for x
    x = 105,780,655,621,206,848/393,983,998.40
  6. Step 6: Final answer
    x = 268,489,725.60

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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.