Home / 70,418,546.42-105,616,489.32-19,288,611.86

Finding the Fourth Proportional to 70,418,546.42, 105,616,489.32 and 19,288,611.86

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Solution

The fourth proportional to 70,418,546.42, 105,616,489.32 and 19,288,611.86 is: 28,929,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,418,546.42 : 105,616,489.32 = 19,288,611.86 : x
  2. Step 2: Convert to fraction form
    70,418,546.42/105,616,489.32 = 19,288,611.86/x
  3. Step 3: Cross multiply
    70,418,546.42x = 105,616,489.32 × 19,288,611.86
  4. Step 4: Simplify right side
    70,418,546.42x = 2,037,195,467,981,232.75
  5. Step 5: Solve for x
    x = 2,037,195,467,981,232.75/70,418,546.42
  6. Step 6: Final answer
    x = 28,929,814.26

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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.