Home / 408,832,379.20-613,248,568.80-328,210,811.20

Finding the Fourth Proportional to 408,832,379.20, 613,248,568.80 and 328,210,811.20

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Solution

The fourth proportional to 408,832,379.20, 613,248,568.80 and 328,210,811.20 is: 492,316,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,832,379.20 : 613,248,568.80 = 328,210,811.20 : x
  2. Step 2: Convert to fraction form
    408,832,379.20/613,248,568.80 = 328,210,811.20/x
  3. Step 3: Cross multiply
    408,832,379.20x = 613,248,568.80 × 328,210,811.20
  4. Step 4: Simplify right side
    408,832,379.20x = 201,274,810,233,086,976
  5. Step 5: Solve for x
    x = 201,274,810,233,086,976/408,832,379.20
  6. Step 6: Final answer
    x = 492,316,216.80

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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.