Home / 312,750,589.14-431,488,910.25-178,692,316.74

Finding the Fourth Proportional to 312,750,589.14, 431,488,910.25 and 178,692,316.74

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Solution

The fourth proportional to 312,750,589.14, 431,488,910.25 and 178,692,316.74 is: 246,534,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,750,589.14 : 431,488,910.25 = 178,692,316.74 : x
  2. Step 2: Convert to fraction form
    312,750,589.14/431,488,910.25 = 178,692,316.74/x
  3. Step 3: Cross multiply
    312,750,589.14x = 431,488,910.25 × 178,692,316.74
  4. Step 4: Simplify right side
    312,750,589.14x = 77,103,753,020,190,432
  5. Step 5: Solve for x
    x = 77,103,753,020,190,432/312,750,589.14
  6. Step 6: Final answer
    x = 246,534,317.43

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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.