Home / 28,086,380.25-38,760,401.76-15,696,473.31

Finding the Fourth Proportional to 28,086,380.25, 38,760,401.76 and 15,696,473.31

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Solution

The fourth proportional to 28,086,380.25, 38,760,401.76 and 15,696,473.31 is: 21,661,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,380.25 : 38,760,401.76 = 15,696,473.31 : x
  2. Step 2: Convert to fraction form
    28,086,380.25/38,760,401.76 = 15,696,473.31/x
  3. Step 3: Cross multiply
    28,086,380.25x = 38,760,401.76 × 15,696,473.31
  4. Step 4: Simplify right side
    28,086,380.25x = 608,401,611,651,855.25
  5. Step 5: Solve for x
    x = 608,401,611,651,855.25/28,086,380.25
  6. Step 6: Final answer
    x = 21,661,802.14

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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.