Home / 30,212,270.56-45,274,445.52-18,673,101.28

Finding the Fourth Proportional to 30,212,270.56, 45,274,445.52 and 18,673,101.28

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Solution

The fourth proportional to 30,212,270.56, 45,274,445.52 and 18,673,101.28 is: 27,982,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212,270.56 : 45,274,445.52 = 18,673,101.28 : x
  2. Step 2: Convert to fraction form
    30,212,270.56/45,274,445.52 = 18,673,101.28/x
  3. Step 3: Cross multiply
    30,212,270.56x = 45,274,445.52 × 18,673,101.28
  4. Step 4: Simplify right side
    30,212,270.56x = 845,414,306,590,802.38
  5. Step 5: Solve for x
    x = 845,414,306,590,802.38/30,212,270.56
  6. Step 6: Final answer
    x = 27,982,481.65

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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.