Home / 308,850,697.12-463,275,654.45-78,819,786.94

Finding the Fourth Proportional to 308,850,697.12, 463,275,654.45 and 78,819,786.94

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Solution

The fourth proportional to 308,850,697.12, 463,275,654.45 and 78,819,786.94 is: 118,229,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,850,697.12 : 463,275,654.45 = 78,819,786.94 : x
  2. Step 2: Convert to fraction form
    308,850,697.12/463,275,654.45 = 78,819,786.94/x
  3. Step 3: Cross multiply
    308,850,697.12x = 463,275,654.45 × 78,819,786.94
  4. Step 4: Simplify right side
    308,850,697.12x = 36,515,288,377,873,640
  5. Step 5: Solve for x
    x = 36,515,288,377,873,640/308,850,697.12
  6. Step 6: Final answer
    x = 118,229,580.57

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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.