Home / 211,936,468.80-317,904,703.20-199,171,387.20

Finding the Fourth Proportional to 211,936,468.80, 317,904,703.20 and 199,171,387.20

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Solution

The fourth proportional to 211,936,468.80, 317,904,703.20 and 199,171,387.20 is: 298,757,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,936,468.80 : 317,904,703.20 = 199,171,387.20 : x
  2. Step 2: Convert to fraction form
    211,936,468.80/317,904,703.20 = 199,171,387.20/x
  3. Step 3: Cross multiply
    211,936,468.80x = 317,904,703.20 × 199,171,387.20
  4. Step 4: Simplify right side
    211,936,468.80x = 63,317,520,733,748,272
  5. Step 5: Solve for x
    x = 63,317,520,733,748,272/211,936,468.80
  6. Step 6: Final answer
    x = 298,757,080.80

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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.