Home / 221,353,704.18-331,808,347.55-75,687,645.17

Finding the Fourth Proportional to 221,353,704.18, 331,808,347.55 and 75,687,645.17

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Solution

The fourth proportional to 221,353,704.18, 331,808,347.55 and 75,687,645.17 is: 113,455,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,353,704.18 : 331,808,347.55 = 75,687,645.17 : x
  2. Step 2: Convert to fraction form
    221,353,704.18/331,808,347.55 = 75,687,645.17/x
  3. Step 3: Cross multiply
    221,353,704.18x = 331,808,347.55 × 75,687,645.17
  4. Step 4: Simplify right side
    221,353,704.18x = 25,113,792,474,827,180
  5. Step 5: Solve for x
    x = 25,113,792,474,827,180/221,353,704.18
  6. Step 6: Final answer
    x = 113,455,487.76

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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.