Home / 312,528,210.50-431,219,069.92-178,523,291.59

Finding the Fourth Proportional to 312,528,210.50, 431,219,069.92 and 178,523,291.59

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Solution

The fourth proportional to 312,528,210.50, 431,219,069.92 and 178,523,291.59 is: 246,322,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,528,210.50 : 431,219,069.92 = 178,523,291.59 : x
  2. Step 2: Convert to fraction form
    312,528,210.50/431,219,069.92 = 178,523,291.59/x
  3. Step 3: Cross multiply
    312,528,210.50x = 431,219,069.92 × 178,523,291.59
  4. Step 4: Simplify right side
    312,528,210.50x = 76,982,647,757,640,080
  5. Step 5: Solve for x
    x = 76,982,647,757,640,080/312,528,210.50
  6. Step 6: Final answer
    x = 246,322,236.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.