Home / 664,661,220.39-917,235,291.87-363,252,685.77

Finding the Fourth Proportional to 664,661,220.39, 917,235,291.87 and 363,252,685.77

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Solution

The fourth proportional to 664,661,220.39, 917,235,291.87 and 363,252,685.77 is: 501,290,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,661,220.39 : 917,235,291.87 = 363,252,685.77 : x
  2. Step 2: Convert to fraction form
    664,661,220.39/917,235,291.87 = 363,252,685.77/x
  3. Step 3: Cross multiply
    664,661,220.39x = 917,235,291.87 × 363,252,685.77
  4. Step 4: Simplify right side
    664,661,220.39x = 333,188,183,254,807,360
  5. Step 5: Solve for x
    x = 333,188,183,254,807,360/664,661,220.39
  6. Step 6: Final answer
    x = 501,290,240.85

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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.