Home / 628,722,078.30-943,083,117.45-219,735,582.30

Finding the Fourth Proportional to 628,722,078.30, 943,083,117.45 and 219,735,582.30

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Solution

The fourth proportional to 628,722,078.30, 943,083,117.45 and 219,735,582.30 is: 329,603,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,722,078.30 : 943,083,117.45 = 219,735,582.30 : x
  2. Step 2: Convert to fraction form
    628,722,078.30/943,083,117.45 = 219,735,582.30/x
  3. Step 3: Cross multiply
    628,722,078.30x = 943,083,117.45 × 219,735,582.30
  4. Step 4: Simplify right side
    628,722,078.30x = 207,228,917,970,175,072
  5. Step 5: Solve for x
    x = 207,228,917,970,175,072/628,722,078.30
  6. Step 6: Final answer
    x = 329,603,373.45

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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.