Home / 20,495,953.20-28,285,016.94-11,204,036.76

Finding the Fourth Proportional to 20,495,953.20, 28,285,016.94 and 11,204,036.76

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Solution

The fourth proportional to 20,495,953.20, 28,285,016.94 and 11,204,036.76 is: 15,461,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495,953.20 : 28,285,016.94 = 11,204,036.76 : x
  2. Step 2: Convert to fraction form
    20,495,953.20/28,285,016.94 = 11,204,036.76/x
  3. Step 3: Cross multiply
    20,495,953.20x = 28,285,016.94 × 11,204,036.76
  4. Step 4: Simplify right side
    20,495,953.20x = 316,906,369,552,982.75
  5. Step 5: Solve for x
    x = 316,906,369,552,982.75/20,495,953.20
  6. Step 6: Final answer
    x = 15,461,899.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.