Home / 672,801,307.40-1,009,390,917.90-327,766,190.60

Finding the Fourth Proportional to 672,801,307.40, 1,009,390,917.90 and 327,766,190.60

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Solution

The fourth proportional to 672,801,307.40, 1,009,390,917.90 and 327,766,190.60 is: 491,741,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,801,307.40 : 1,009,390,917.90 = 327,766,190.60 : x
  2. Step 2: Convert to fraction form
    672,801,307.40/1,009,390,917.90 = 327,766,190.60/x
  3. Step 3: Cross multiply
    672,801,307.40x = 1,009,390,917.90 × 327,766,190.60
  4. Step 4: Simplify right side
    672,801,307.40x = 330,844,215,986,320,384
  5. Step 5: Solve for x
    x = 330,844,215,986,320,384/672,801,307.40
  6. Step 6: Final answer
    x = 491,741,339.30

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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.