Home / 664,451,813.60-916,915,751.52-382,172,792.48

Finding the Fourth Proportional to 664,451,813.60, 916,915,751.52 and 382,172,792.48

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Solution

The fourth proportional to 664,451,813.60, 916,915,751.52 and 382,172,792.48 is: 527,382,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,451,813.60 : 916,915,751.52 = 382,172,792.48 : x
  2. Step 2: Convert to fraction form
    664,451,813.60/916,915,751.52 = 382,172,792.48/x
  3. Step 3: Cross multiply
    664,451,813.60x = 916,915,751.52 × 382,172,792.48
  4. Step 4: Simplify right side
    664,451,813.60x = 350,420,253,227,296,192
  5. Step 5: Solve for x
    x = 350,420,253,227,296,192/664,451,813.60
  6. Step 6: Final answer
    x = 527,382,491.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.