Home / 312,402,527.45-431,118,987.97-178,458,174.73

Finding the Fourth Proportional to 312,402,527.45, 431,118,987.97 and 178,458,174.73

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Solution

The fourth proportional to 312,402,527.45, 431,118,987.97 and 178,458,174.73 is: 246,274,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,402,527.45 : 431,118,987.97 = 178,458,174.73 : x
  2. Step 2: Convert to fraction form
    312,402,527.45/431,118,987.97 = 178,458,174.73/x
  3. Step 3: Cross multiply
    312,402,527.45x = 431,118,987.97 × 178,458,174.73
  4. Step 4: Simplify right side
    312,402,527.45x = 76,936,707,684,571,024
  5. Step 5: Solve for x
    x = 76,936,707,684,571,024/312,402,527.45
  6. Step 6: Final answer
    x = 246,274,280.53

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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.