Home / 21,297,129-31,932,906.84-9,768,154.38

Finding the Fourth Proportional to 21,297,129, 31,932,906.84 and 9,768,154.38

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Solution

The fourth proportional to 21,297,129, 31,932,906.84 and 9,768,154.38 is: 14,646,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,129 : 31,932,906.84 = 9,768,154.38 : x
  2. Step 2: Convert to fraction form
    21,297,129/31,932,906.84 = 9,768,154.38/x
  3. Step 3: Cross multiply
    21,297,129x = 31,932,906.84 × 9,768,154.38
  4. Step 4: Simplify right side
    21,297,129x = 311,925,563,815,278
  5. Step 5: Solve for x
    x = 311,925,563,815,278/21,297,129
  6. Step 6: Final answer
    x = 14,646,366.83

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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.