Home / 213,079,530.30-319,955,218.65-122,380,266.30

Finding the Fourth Proportional to 213,079,530.30, 319,955,218.65 and 122,380,266.30

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Solution

The fourth proportional to 213,079,530.30, 319,955,218.65 and 122,380,266.30 is: 183,763,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,079,530.30 : 319,955,218.65 = 122,380,266.30 : x
  2. Step 2: Convert to fraction form
    213,079,530.30/319,955,218.65 = 122,380,266.30/x
  3. Step 3: Cross multiply
    213,079,530.30x = 319,955,218.65 × 122,380,266.30
  4. Step 4: Simplify right side
    213,079,530.30x = 39,156,204,862,461,720
  5. Step 5: Solve for x
    x = 39,156,204,862,461,720/213,079,530.30
  6. Step 6: Final answer
    x = 183,763,333.85

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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.