Home / 521,603,999.70-782,405,999.55-482,189,010.90

Finding the Fourth Proportional to 521,603,999.70, 782,405,999.55 and 482,189,010.90

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Solution

The fourth proportional to 521,603,999.70, 782,405,999.55 and 482,189,010.90 is: 723,283,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,603,999.70 : 782,405,999.55 = 482,189,010.90 : x
  2. Step 2: Convert to fraction form
    521,603,999.70/782,405,999.55 = 482,189,010.90/x
  3. Step 3: Cross multiply
    521,603,999.70x = 782,405,999.55 × 482,189,010.90
  4. Step 4: Simplify right side
    521,603,999.70x = 377,267,575,045,240,320
  5. Step 5: Solve for x
    x = 377,267,575,045,240,320/521,603,999.70
  6. Step 6: Final answer
    x = 723,283,516.35

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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.