Home / 118,614,021.30-177,622,433.55-78,004,638.90

Finding the Fourth Proportional to 118,614,021.30, 177,622,433.55 and 78,004,638.90

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Solution

The fourth proportional to 118,614,021.30, 177,622,433.55 and 78,004,638.90 is: 116,810,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,614,021.30 : 177,622,433.55 = 78,004,638.90 : x
  2. Step 2: Convert to fraction form
    118,614,021.30/177,622,433.55 = 78,004,638.90/x
  3. Step 3: Cross multiply
    118,614,021.30x = 177,622,433.55 × 78,004,638.90
  4. Step 4: Simplify right side
    118,614,021.30x = 13,855,373,789,606,998
  5. Step 5: Solve for x
    x = 13,855,373,789,606,998/118,614,021.30
  6. Step 6: Final answer
    x = 116,810,589.83

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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.