Home / 816,482,672.80-1,224,724,009.20-271,224,206.80

Finding the Fourth Proportional to 816,482,672.80, 1,224,724,009.20 and 271,224,206.80

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Solution

The fourth proportional to 816,482,672.80, 1,224,724,009.20 and 271,224,206.80 is: 406,836,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,482,672.80 : 1,224,724,009.20 = 271,224,206.80 : x
  2. Step 2: Convert to fraction form
    816,482,672.80/1,224,724,009.20 = 271,224,206.80/x
  3. Step 3: Cross multiply
    816,482,672.80x = 1,224,724,009.20 × 271,224,206.80
  4. Step 4: Simplify right side
    816,482,672.80x = 332,174,797,944,185,920
  5. Step 5: Solve for x
    x = 332,174,797,944,185,920/816,482,672.80
  6. Step 6: Final answer
    x = 406,836,310.20

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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.