Home / 21,297,138.50-31,932,921.09-9,768,163.88

Finding the Fourth Proportional to 21,297,138.50, 31,932,921.09 and 9,768,163.88

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Solution

The fourth proportional to 21,297,138.50, 31,932,921.09 and 9,768,163.88 is: 14,646,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,138.50 : 31,932,921.09 = 9,768,163.88 : x
  2. Step 2: Convert to fraction form
    21,297,138.50/31,932,921.09 = 9,768,163.88/x
  3. Step 3: Cross multiply
    21,297,138.50x = 31,932,921.09 × 9,768,163.88
  4. Step 4: Simplify right side
    21,297,138.50x = 311,926,006,374,228.25
  5. Step 5: Solve for x
    x = 311,926,006,374,228.25/21,297,138.50
  6. Step 6: Final answer
    x = 14,646,381.08

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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.