Home / 20,434,412.84-30,616,933.18-12,330,360.68

Finding the Fourth Proportional to 20,434,412.84, 30,616,933.18 and 12,330,360.68

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Solution

The fourth proportional to 20,434,412.84, 30,616,933.18 and 12,330,360.68 is: 18,474,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,412.84 : 30,616,933.18 = 12,330,360.68 : x
  2. Step 2: Convert to fraction form
    20,434,412.84/30,616,933.18 = 12,330,360.68/x
  3. Step 3: Cross multiply
    20,434,412.84x = 30,616,933.18 × 12,330,360.68
  4. Step 4: Simplify right side
    20,434,412.84x = 377,517,829,024,859.38
  5. Step 5: Solve for x
    x = 377,517,829,024,859.38/20,434,412.84
  6. Step 6: Final answer
    x = 18,474,611.04

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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.