Home / 21,383,748.54-31,999,000.33-18,515,012.22

Finding the Fourth Proportional to 21,383,748.54, 31,999,000.33 and 18,515,012.22

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Solution

The fourth proportional to 21,383,748.54, 31,999,000.33 and 18,515,012.22 is: 27,706,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,748.54 : 31,999,000.33 = 18,515,012.22 : x
  2. Step 2: Convert to fraction form
    21,383,748.54/31,999,000.33 = 18,515,012.22/x
  3. Step 3: Cross multiply
    21,383,748.54x = 31,999,000.33 × 18,515,012.22
  4. Step 4: Simplify right side
    21,383,748.54x = 592,461,882,137,734
  5. Step 5: Solve for x
    x = 592,461,882,137,734/21,383,748.54
  6. Step 6: Final answer
    x = 27,706,175.14

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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.