Home / 260,815,929.30-391,223,893.95-139,883,577.30

Finding the Fourth Proportional to 260,815,929.30, 391,223,893.95 and 139,883,577.30

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Solution

The fourth proportional to 260,815,929.30, 391,223,893.95 and 139,883,577.30 is: 209,825,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,815,929.30 : 391,223,893.95 = 139,883,577.30 : x
  2. Step 2: Convert to fraction form
    260,815,929.30/391,223,893.95 = 139,883,577.30/x
  3. Step 3: Cross multiply
    260,815,929.30x = 391,223,893.95 × 139,883,577.30
  4. Step 4: Simplify right side
    260,815,929.30x = 54,725,797,810,961,832
  5. Step 5: Solve for x
    x = 54,725,797,810,961,832/260,815,929.30
  6. Step 6: Final answer
    x = 209,825,365.95

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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.