Home / 325,690,653.20-488,535,979.80-172,635,645.20

Finding the Fourth Proportional to 325,690,653.20, 488,535,979.80 and 172,635,645.20

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Solution

The fourth proportional to 325,690,653.20, 488,535,979.80 and 172,635,645.20 is: 258,953,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,690,653.20 : 488,535,979.80 = 172,635,645.20 : x
  2. Step 2: Convert to fraction form
    325,690,653.20/488,535,979.80 = 172,635,645.20/x
  3. Step 3: Cross multiply
    325,690,653.20x = 488,535,979.80 × 172,635,645.20
  4. Step 4: Simplify right side
    325,690,653.20x = 84,338,724,076,187,168
  5. Step 5: Solve for x
    x = 84,338,724,076,187,168/325,690,653.20
  6. Step 6: Final answer
    x = 258,953,467.80

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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.