Home / 706,638,624.78-1,059,467,087.76-312,950,920.97

Finding the Fourth Proportional to 706,638,624.78, 1,059,467,087.76 and 312,950,920.97

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Solution

The fourth proportional to 706,638,624.78, 1,059,467,087.76 and 312,950,920.97 is: 469,208,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,638,624.78 : 1,059,467,087.76 = 312,950,920.97 : x
  2. Step 2: Convert to fraction form
    706,638,624.78/1,059,467,087.76 = 312,950,920.97/x
  3. Step 3: Cross multiply
    706,638,624.78x = 1,059,467,087.76 × 312,950,920.97
  4. Step 4: Simplify right side
    706,638,624.78x = 331,561,200,846,598,464
  5. Step 5: Solve for x
    x = 331,561,200,846,598,464/706,638,624.78
  6. Step 6: Final answer
    x = 469,208,997.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.