Home / 393,433,999.20-590,150,998.80-120,769,336.80

Finding the Fourth Proportional to 393,433,999.20, 590,150,998.80 and 120,769,336.80

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Solution

The fourth proportional to 393,433,999.20, 590,150,998.80 and 120,769,336.80 is: 181,154,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,433,999.20 : 590,150,998.80 = 120,769,336.80 : x
  2. Step 2: Convert to fraction form
    393,433,999.20/590,150,998.80 = 120,769,336.80/x
  3. Step 3: Cross multiply
    393,433,999.20x = 590,150,998.80 × 120,769,336.80
  4. Step 4: Simplify right side
    393,433,999.20x = 71,272,144,736,933,592
  5. Step 5: Solve for x
    x = 71,272,144,736,933,592/393,433,999.20
  6. Step 6: Final answer
    x = 181,154,005.20

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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.