Home / 21,285,876.60-31,932,962.10-8,504,206.20

Finding the Fourth Proportional to 21,285,876.60, 31,932,962.10 and 8,504,206.20

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Solution

The fourth proportional to 21,285,876.60, 31,932,962.10 and 8,504,206.20 is: 12,757,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,876.60 : 31,932,962.10 = 8,504,206.20 : x
  2. Step 2: Convert to fraction form
    21,285,876.60/31,932,962.10 = 8,504,206.20/x
  3. Step 3: Cross multiply
    21,285,876.60x = 31,932,962.10 × 8,504,206.20
  4. Step 4: Simplify right side
    21,285,876.60x = 271,564,494,275,185
  5. Step 5: Solve for x
    x = 271,564,494,275,185/21,285,876.60
  6. Step 6: Final answer
    x = 12,757,966.20

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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.