Home / 878,165,236.80-1,317,247,855.20-231,932,980.80

Finding the Fourth Proportional to 878,165,236.80, 1,317,247,855.20 and 231,932,980.80

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Solution

The fourth proportional to 878,165,236.80, 1,317,247,855.20 and 231,932,980.80 is: 347,899,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,165,236.80 : 1,317,247,855.20 = 231,932,980.80 : x
  2. Step 2: Convert to fraction form
    878,165,236.80/1,317,247,855.20 = 231,932,980.80/x
  3. Step 3: Cross multiply
    878,165,236.80x = 1,317,247,855.20 × 231,932,980.80
  4. Step 4: Simplify right side
    878,165,236.80x = 305,513,221,508,942,784
  5. Step 5: Solve for x
    x = 305,513,221,508,942,784/878,165,236.80
  6. Step 6: Final answer
    x = 347,899,471.20

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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.