Home / 221,353,818.93-331,808,519.88-75,687,759.72

Finding the Fourth Proportional to 221,353,818.93, 331,808,519.88 and 75,687,759.72

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Solution

The fourth proportional to 221,353,818.93, 331,808,519.88 and 75,687,759.72 is: 113,455,659.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,353,818.93 : 331,808,519.88 = 75,687,759.72 : x
  2. Step 2: Convert to fraction form
    221,353,818.93/331,808,519.88 = 75,687,759.72/x
  3. Step 3: Cross multiply
    221,353,818.93x = 331,808,519.88 × 75,687,759.72
  4. Step 4: Simplify right side
    221,353,818.93x = 25,113,843,525,726,284
  5. Step 5: Solve for x
    x = 25,113,843,525,726,284/221,353,818.93
  6. Step 6: Final answer
    x = 113,455,659.57

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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.