Home / 661,059,245.52-991,709,936.52-272,670,205.20

Finding the Fourth Proportional to 661,059,245.52, 991,709,936.52 and 272,670,205.20

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Solution

The fourth proportional to 661,059,245.52, 991,709,936.52 and 272,670,205.20 is: 409,055,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,059,245.52 : 991,709,936.52 = 272,670,205.20 : x
  2. Step 2: Convert to fraction form
    661,059,245.52/991,709,936.52 = 272,670,205.20/x
  3. Step 3: Cross multiply
    661,059,245.52x = 991,709,936.52 × 272,670,205.20
  4. Step 4: Simplify right side
    661,059,245.52x = 270,409,751,889,787,360
  5. Step 5: Solve for x
    x = 270,409,751,889,787,360/661,059,245.52
  6. Step 6: Final answer
    x = 409,055,245.38

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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.