Home / 21,198,819.06-31,780,853-7,544,189.94

Finding the Fourth Proportional to 21,198,819.06, 31,780,853 and 7,544,189.94

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Solution

The fourth proportional to 21,198,819.06, 31,780,853 and 7,544,189.94 is: 11,310,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198,819.06 : 31,780,853 = 7,544,189.94 : x
  2. Step 2: Convert to fraction form
    21,198,819.06/31,780,853 = 7,544,189.94/x
  3. Step 3: Cross multiply
    21,198,819.06x = 31,780,853 × 7,544,189.94
  4. Step 4: Simplify right side
    21,198,819.06x = 239,760,791,487,218.84
  5. Step 5: Solve for x
    x = 239,760,791,487,218.84/21,198,819.06
  6. Step 6: Final answer
    x = 11,310,101.32

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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.