Home / 312,074,773.86-430,499,911.57-192,959,289.37

Finding the Fourth Proportional to 312,074,773.86, 430,499,911.57 and 192,959,289.37

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Solution

The fourth proportional to 312,074,773.86, 430,499,911.57 and 192,959,289.37 is: 266,182,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,074,773.86 : 430,499,911.57 = 192,959,289.37 : x
  2. Step 2: Convert to fraction form
    312,074,773.86/430,499,911.57 = 192,959,289.37/x
  3. Step 3: Cross multiply
    312,074,773.86x = 430,499,911.57 × 192,959,289.37
  4. Step 4: Simplify right side
    312,074,773.86x = 83,068,957,010,395,040
  5. Step 5: Solve for x
    x = 83,068,957,010,395,040/312,074,773.86
  6. Step 6: Final answer
    x = 266,182,863.75

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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.