Home / 20,085,899.73-30,070,930.65-18,009,044.95

Finding the Fourth Proportional to 20,085,899.73, 30,070,930.65 and 18,009,044.95

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Solution

The fourth proportional to 20,085,899.73, 30,070,930.65 and 18,009,044.95 is: 26,961,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085,899.73 : 30,070,930.65 = 18,009,044.95 : x
  2. Step 2: Convert to fraction form
    20,085,899.73/30,070,930.65 = 18,009,044.95/x
  3. Step 3: Cross multiply
    20,085,899.73x = 30,070,930.65 × 18,009,044.95
  4. Step 4: Simplify right side
    20,085,899.73x = 541,548,741,689,005.44
  5. Step 5: Solve for x
    x = 541,548,741,689,005.44/20,085,899.73
  6. Step 6: Final answer
    x = 26,961,637.22

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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.