Home / 28,731,348.90-39,650,104.26-15,679,450.62

Finding the Fourth Proportional to 28,731,348.90, 39,650,104.26 and 15,679,450.62

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Solution

The fourth proportional to 28,731,348.90, 39,650,104.26 and 15,679,450.62 is: 21,638,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,348.90 : 39,650,104.26 = 15,679,450.62 : x
  2. Step 2: Convert to fraction form
    28,731,348.90/39,650,104.26 = 15,679,450.62/x
  3. Step 3: Cross multiply
    28,731,348.90x = 39,650,104.26 × 15,679,450.62
  4. Step 4: Simplify right side
    28,731,348.90x = 621,691,851,822,521.62
  5. Step 5: Solve for x
    x = 621,691,851,822,521.62/28,731,348.90
  6. Step 6: Final answer
    x = 21,638,101.78

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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.