Home / 21,285,849.60-31,932,921.60-8,504,179.20

Finding the Fourth Proportional to 21,285,849.60, 31,932,921.60 and 8,504,179.20

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Solution

The fourth proportional to 21,285,849.60, 31,932,921.60 and 8,504,179.20 is: 12,757,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,849.60 : 31,932,921.60 = 8,504,179.20 : x
  2. Step 2: Convert to fraction form
    21,285,849.60/31,932,921.60 = 8,504,179.20/x
  3. Step 3: Cross multiply
    21,285,849.60x = 31,932,921.60 × 8,504,179.20
  4. Step 4: Simplify right side
    21,285,849.60x = 271,563,287,665,950.72
  5. Step 5: Solve for x
    x = 271,563,287,665,950.72/21,285,849.60
  6. Step 6: Final answer
    x = 12,757,925.70

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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.