Home / 639,373,564.71-882,335,511.60-346,018,132.71

Finding the Fourth Proportional to 639,373,564.71, 882,335,511.60 and 346,018,132.71

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Solution

The fourth proportional to 639,373,564.71, 882,335,511.60 and 346,018,132.71 is: 477,505,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,373,564.71 : 882,335,511.60 = 346,018,132.71 : x
  2. Step 2: Convert to fraction form
    639,373,564.71/882,335,511.60 = 346,018,132.71/x
  3. Step 3: Cross multiply
    639,373,564.71x = 882,335,511.60 × 346,018,132.71
  4. Step 4: Simplify right side
    639,373,564.71x = 305,304,086,146,267,328
  5. Step 5: Solve for x
    x = 305,304,086,146,267,328/639,373,564.71
  6. Step 6: Final answer
    x = 477,505,018.97

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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.