Home / 212,944,621.30-319,558,649.55-120,828,181.30

Finding the Fourth Proportional to 212,944,621.30, 319,558,649.55 and 120,828,181.30

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Solution

The fourth proportional to 212,944,621.30, 319,558,649.55 and 120,828,181.30 is: 181,322,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,944,621.30 : 319,558,649.55 = 120,828,181.30 : x
  2. Step 2: Convert to fraction form
    212,944,621.30/319,558,649.55 = 120,828,181.30/x
  3. Step 3: Cross multiply
    212,944,621.30x = 319,558,649.55 × 120,828,181.30
  4. Step 4: Simplify right side
    212,944,621.30x = 38,611,690,443,810,560
  5. Step 5: Solve for x
    x = 38,611,690,443,810,560/212,944,621.30
  6. Step 6: Final answer
    x = 181,322,684.78

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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.