Home / 671,940,120.80-1,007,910,181.20-212,019,269.60

Finding the Fourth Proportional to 671,940,120.80, 1,007,910,181.20 and 212,019,269.60

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Solution

The fourth proportional to 671,940,120.80, 1,007,910,181.20 and 212,019,269.60 is: 318,028,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,940,120.80 : 1,007,910,181.20 = 212,019,269.60 : x
  2. Step 2: Convert to fraction form
    671,940,120.80/1,007,910,181.20 = 212,019,269.60/x
  3. Step 3: Cross multiply
    671,940,120.80x = 1,007,910,181.20 × 212,019,269.60
  4. Step 4: Simplify right side
    671,940,120.80x = 213,696,380,440,427,648
  5. Step 5: Solve for x
    x = 213,696,380,440,427,648/671,940,120.80
  6. Step 6: Final answer
    x = 318,028,904.40

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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.