Home / 28,086,380.31-38,760,401.84-15,696,473.37

Finding the Fourth Proportional to 28,086,380.31, 38,760,401.84 and 15,696,473.37

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Solution

The fourth proportional to 28,086,380.31, 38,760,401.84 and 15,696,473.37 is: 21,661,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,380.31 : 38,760,401.84 = 15,696,473.37 : x
  2. Step 2: Convert to fraction form
    28,086,380.31/38,760,401.84 = 15,696,473.37/x
  3. Step 3: Cross multiply
    28,086,380.31x = 38,760,401.84 × 15,696,473.37
  4. Step 4: Simplify right side
    28,086,380.31x = 608,401,615,292,059
  5. Step 5: Solve for x
    x = 608,401,615,292,059/28,086,380.31
  6. Step 6: Final answer
    x = 21,661,802.22

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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.