Home / 211,968,008.80-317,952,013.20-115,222,127.20

Finding the Fourth Proportional to 211,968,008.80, 317,952,013.20 and 115,222,127.20

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Solution

The fourth proportional to 211,968,008.80, 317,952,013.20 and 115,222,127.20 is: 172,833,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968,008.80 : 317,952,013.20 = 115,222,127.20 : x
  2. Step 2: Convert to fraction form
    211,968,008.80/317,952,013.20 = 115,222,127.20/x
  3. Step 3: Cross multiply
    211,968,008.80x = 317,952,013.20 × 115,222,127.20
  4. Step 4: Simplify right side
    211,968,008.80x = 36,635,107,308,426,480
  5. Step 5: Solve for x
    x = 36,635,107,308,426,480/211,968,008.80
  6. Step 6: Final answer
    x = 172,833,190.80

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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.