Home / 628,722,140.80-943,083,211.20-219,735,644.80

Finding the Fourth Proportional to 628,722,140.80, 943,083,211.20 and 219,735,644.80

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Solution

The fourth proportional to 628,722,140.80, 943,083,211.20 and 219,735,644.80 is: 329,603,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,722,140.80 : 943,083,211.20 = 219,735,644.80 : x
  2. Step 2: Convert to fraction form
    628,722,140.80/943,083,211.20 = 219,735,644.80/x
  3. Step 3: Cross multiply
    628,722,140.80x = 943,083,211.20 × 219,735,644.80
  4. Step 4: Simplify right side
    628,722,140.80x = 207,228,997,513,086,592
  5. Step 5: Solve for x
    x = 207,228,997,513,086,592/628,722,140.80
  6. Step 6: Final answer
    x = 329,603,467.20

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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.