Home / 393,434,999.70-590,152,499.55-120,770,337.30

Finding the Fourth Proportional to 393,434,999.70, 590,152,499.55 and 120,770,337.30

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Solution

The fourth proportional to 393,434,999.70, 590,152,499.55 and 120,770,337.30 is: 181,155,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,434,999.70 : 590,152,499.55 = 120,770,337.30 : x
  2. Step 2: Convert to fraction form
    393,434,999.70/590,152,499.55 = 120,770,337.30/x
  3. Step 3: Cross multiply
    393,434,999.70x = 590,152,499.55 × 120,770,337.30
  4. Step 4: Simplify right side
    393,434,999.70x = 71,272,916,429,091,592
  5. Step 5: Solve for x
    x = 71,272,916,429,091,592/393,434,999.70
  6. Step 6: Final answer
    x = 181,155,505.95

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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.