Home / 628,722,126.80-943,083,190.20-219,735,630.80

Finding the Fourth Proportional to 628,722,126.80, 943,083,190.20 and 219,735,630.80

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Solution

The fourth proportional to 628,722,126.80, 943,083,190.20 and 219,735,630.80 is: 329,603,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,722,126.80 : 943,083,190.20 = 219,735,630.80 : x
  2. Step 2: Convert to fraction form
    628,722,126.80/943,083,190.20 = 219,735,630.80/x
  3. Step 3: Cross multiply
    628,722,126.80x = 943,083,190.20 × 219,735,630.80
  4. Step 4: Simplify right side
    628,722,126.80x = 207,228,979,695,473,408
  5. Step 5: Solve for x
    x = 207,228,979,695,473,408/628,722,126.80
  6. Step 6: Final answer
    x = 329,603,446.20

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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.