Home / 312,074,773.70-430,499,911.35-192,959,289.21

Finding the Fourth Proportional to 312,074,773.70, 430,499,911.35 and 192,959,289.21

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Solution

The fourth proportional to 312,074,773.70, 430,499,911.35 and 192,959,289.21 is: 266,182,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,074,773.70 : 430,499,911.35 = 192,959,289.21 : x
  2. Step 2: Convert to fraction form
    312,074,773.70/430,499,911.35 = 192,959,289.21/x
  3. Step 3: Cross multiply
    312,074,773.70x = 430,499,911.35 × 192,959,289.21
  4. Step 4: Simplify right side
    312,074,773.70x = 83,068,956,901,401,984
  5. Step 5: Solve for x
    x = 83,068,956,901,401,984/312,074,773.70
  6. Step 6: Final answer
    x = 266,182,863.54

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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.