Home / 21,195,029.40-31,806,540.90-12,097,109.40

Finding the Fourth Proportional to 21,195,029.40, 31,806,540.90 and 12,097,109.40

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Solution

The fourth proportional to 21,195,029.40, 31,806,540.90 and 12,097,109.40 is: 18,153,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195,029.40 : 31,806,540.90 = 12,097,109.40 : x
  2. Step 2: Convert to fraction form
    21,195,029.40/31,806,540.90 = 12,097,109.40/x
  3. Step 3: Cross multiply
    21,195,029.40x = 31,806,540.90 × 12,097,109.40
  4. Step 4: Simplify right side
    21,195,029.40x = 384,767,204,902,874.44
  5. Step 5: Solve for x
    x = 384,767,204,902,874.44/21,195,029.40
  6. Step 6: Final answer
    x = 18,153,652.80

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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.