Home / 21,200,856.84-31,801,451.04-11,611,003.86

Finding the Fourth Proportional to 21,200,856.84, 31,801,451.04 and 11,611,003.86

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Solution

The fourth proportional to 21,200,856.84, 31,801,451.04 and 11,611,003.86 is: 17,416,596.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,856.84 : 31,801,451.04 = 11,611,003.86 : x
  2. Step 2: Convert to fraction form
    21,200,856.84/31,801,451.04 = 11,611,003.86/x
  3. Step 3: Cross multiply
    21,200,856.84x = 31,801,451.04 × 11,611,003.86
  4. Step 4: Simplify right side
    21,200,856.84x = 369,246,770,779,041
  5. Step 5: Solve for x
    x = 369,246,770,779,041/21,200,856.84
  6. Step 6: Final answer
    x = 17,416,596.58

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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.