Home / 212,419,904.20-318,629,856.30-146,662,937.80

Finding the Fourth Proportional to 212,419,904.20, 318,629,856.30 and 146,662,937.80

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Solution

The fourth proportional to 212,419,904.20, 318,629,856.30 and 146,662,937.80 is: 219,994,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,419,904.20 : 318,629,856.30 = 146,662,937.80 : x
  2. Step 2: Convert to fraction form
    212,419,904.20/318,629,856.30 = 146,662,937.80/x
  3. Step 3: Cross multiply
    212,419,904.20x = 318,629,856.30 × 146,662,937.80
  4. Step 4: Simplify right side
    212,419,904.20x = 46,731,190,795,749,840
  5. Step 5: Solve for x
    x = 46,731,190,795,749,840/212,419,904.20
  6. Step 6: Final answer
    x = 219,994,406.70

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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.