Home / 660,932,820.36-991,188,896.76-218,193,064.83

Finding the Fourth Proportional to 660,932,820.36, 991,188,896.76 and 218,193,064.83

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Solution

The fourth proportional to 660,932,820.36, 991,188,896.76 and 218,193,064.83 is: 327,220,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,932,820.36 : 991,188,896.76 = 218,193,064.83 : x
  2. Step 2: Convert to fraction form
    660,932,820.36/991,188,896.76 = 218,193,064.83/x
  3. Step 3: Cross multiply
    660,932,820.36x = 991,188,896.76 × 218,193,064.83
  4. Step 4: Simplify right side
    660,932,820.36x = 216,270,543,209,530,880
  5. Step 5: Solve for x
    x = 216,270,543,209,530,880/660,932,820.36
  6. Step 6: Final answer
    x = 327,220,159.97

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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.