Home / 312,074,778.06-430,499,917.38-192,959,293.58

Finding the Fourth Proportional to 312,074,778.06, 430,499,917.38 and 192,959,293.58

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Solution

The fourth proportional to 312,074,778.06, 430,499,917.38 and 192,959,293.58 is: 266,182,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,074,778.06 : 430,499,917.38 = 192,959,293.58 : x
  2. Step 2: Convert to fraction form
    312,074,778.06/430,499,917.38 = 192,959,293.58/x
  3. Step 3: Cross multiply
    312,074,778.06x = 430,499,917.38 × 192,959,293.58
  4. Step 4: Simplify right side
    312,074,778.06x = 83,068,959,943,893,168
  5. Step 5: Solve for x
    x = 83,068,959,943,893,168/312,074,778.06
  6. Step 6: Final answer
    x = 266,182,869.57

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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.