Home / 21,485,330.46-32,206,446.88-9,978,878.42

Finding the Fourth Proportional to 21,485,330.46, 32,206,446.88 and 9,978,878.42

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Solution

The fourth proportional to 21,485,330.46, 32,206,446.88 and 9,978,878.42 is: 14,958,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485,330.46 : 32,206,446.88 = 9,978,878.42 : x
  2. Step 2: Convert to fraction form
    21,485,330.46/32,206,446.88 = 9,978,878.42/x
  3. Step 3: Cross multiply
    21,485,330.46x = 32,206,446.88 × 9,978,878.42
  4. Step 4: Simplify right side
    21,485,330.46x = 321,384,217,755,708.31
  5. Step 5: Solve for x
    x = 321,384,217,755,708.31/21,485,330.46
  6. Step 6: Final answer
    x = 14,958,309.27

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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.