Home / 260,816,563.80-391,224,845.70-139,884,211.80

Finding the Fourth Proportional to 260,816,563.80, 391,224,845.70 and 139,884,211.80

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Solution

The fourth proportional to 260,816,563.80, 391,224,845.70 and 139,884,211.80 is: 209,826,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,816,563.80 : 391,224,845.70 = 139,884,211.80 : x
  2. Step 2: Convert to fraction form
    260,816,563.80/391,224,845.70 = 139,884,211.80/x
  3. Step 3: Cross multiply
    260,816,563.80x = 391,224,845.70 × 139,884,211.80
  4. Step 4: Simplify right side
    260,816,563.80x = 54,726,179,177,321,120
  5. Step 5: Solve for x
    x = 54,726,179,177,321,120/260,816,563.80
  6. Step 6: Final answer
    x = 209,826,317.70

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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.