Home / 21,342,734.43-31,994,484.86-7,692,540.12

Finding the Fourth Proportional to 21,342,734.43, 31,994,484.86 and 7,692,540.12

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Solution

The fourth proportional to 21,342,734.43, 31,994,484.86 and 7,692,540.12 is: 11,531,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342,734.43 : 31,994,484.86 = 7,692,540.12 : x
  2. Step 2: Convert to fraction form
    21,342,734.43/31,994,484.86 = 7,692,540.12/x
  3. Step 3: Cross multiply
    21,342,734.43x = 31,994,484.86 × 7,692,540.12
  4. Step 4: Simplify right side
    21,342,734.43x = 246,118,858,365,819.88
  5. Step 5: Solve for x
    x = 246,118,858,365,819.88/21,342,734.43
  6. Step 6: Final answer
    x = 11,531,739.72

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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.