Home / 664,661,222.40-917,235,294.64-363,252,687.78

Finding the Fourth Proportional to 664,661,222.40, 917,235,294.64 and 363,252,687.78

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Solution

The fourth proportional to 664,661,222.40, 917,235,294.64 and 363,252,687.78 is: 501,290,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,661,222.40 : 917,235,294.64 = 363,252,687.78 : x
  2. Step 2: Convert to fraction form
    664,661,222.40/917,235,294.64 = 363,252,687.78/x
  3. Step 3: Cross multiply
    664,661,222.40x = 917,235,294.64 × 363,252,687.78
  4. Step 4: Simplify right side
    664,661,222.40x = 333,188,186,104,660,224
  5. Step 5: Solve for x
    x = 333,188,186,104,660,224/664,661,222.40
  6. Step 6: Final answer
    x = 501,290,243.62

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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.