Home / 437,072,020.20-655,608,030.30-219,393,786.60

Finding the Fourth Proportional to 437,072,020.20, 655,608,030.30 and 219,393,786.60

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Solution

The fourth proportional to 437,072,020.20, 655,608,030.30 and 219,393,786.60 is: 329,090,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,072,020.20 : 655,608,030.30 = 219,393,786.60 : x
  2. Step 2: Convert to fraction form
    437,072,020.20/655,608,030.30 = 219,393,786.60/x
  3. Step 3: Cross multiply
    437,072,020.20x = 655,608,030.30 × 219,393,786.60
  4. Step 4: Simplify right side
    437,072,020.20x = 143,836,328,292,884,512
  5. Step 5: Solve for x
    x = 143,836,328,292,884,512/437,072,020.20
  6. Step 6: Final answer
    x = 329,090,679.90

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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.