Home / 157,648,659.85-217,550,935.62-87,082,751.33

Finding the Fourth Proportional to 157,648,659.85, 217,550,935.62 and 87,082,751.33

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Solution

The fourth proportional to 157,648,659.85, 217,550,935.62 and 87,082,751.33 is: 120,171,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,648,659.85 : 217,550,935.62 = 87,082,751.33 : x
  2. Step 2: Convert to fraction form
    157,648,659.85/217,550,935.62 = 87,082,751.33/x
  3. Step 3: Cross multiply
    157,648,659.85x = 217,550,935.62 × 87,082,751.33
  4. Step 4: Simplify right side
    157,648,659.85x = 18,944,934,027,933,360
  5. Step 5: Solve for x
    x = 18,944,934,027,933,360/157,648,659.85
  6. Step 6: Final answer
    x = 120,171,868.54

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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.