Home / 499,348,200.67-749,318,205.75-278,204,639.65

Finding the Fourth Proportional to 499,348,200.67, 749,318,205.75 and 278,204,639.65

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Solution

The fourth proportional to 499,348,200.67, 749,318,205.75 and 278,204,639.65 is: 417,471,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,348,200.67 : 749,318,205.75 = 278,204,639.65 : x
  2. Step 2: Convert to fraction form
    499,348,200.67/749,318,205.75 = 278,204,639.65/x
  3. Step 3: Cross multiply
    499,348,200.67x = 749,318,205.75 × 278,204,639.65
  4. Step 4: Simplify right side
    499,348,200.67x = 208,463,801,413,863,296
  5. Step 5: Solve for x
    x = 208,463,801,413,863,296/499,348,200.67
  6. Step 6: Final answer
    x = 417,471,818.53

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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.