Home / 213,029,998.20-319,544,997.30-122,330,734.20

Finding the Fourth Proportional to 213,029,998.20, 319,544,997.30 and 122,330,734.20

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Solution

The fourth proportional to 213,029,998.20, 319,544,997.30 and 122,330,734.20 is: 183,496,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,029,998.20 : 319,544,997.30 = 122,330,734.20 : x
  2. Step 2: Convert to fraction form
    213,029,998.20/319,544,997.30 = 122,330,734.20/x
  3. Step 3: Cross multiply
    213,029,998.20x = 319,544,997.30 × 122,330,734.20
  4. Step 4: Simplify right side
    213,029,998.20x = 39,090,174,129,646,024
  5. Step 5: Solve for x
    x = 39,090,174,129,646,024/213,029,998.20
  6. Step 6: Final answer
    x = 183,496,101.30

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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.