Home / 28,189,910.58-38,905,775.79-15,967,179.06

Finding the Fourth Proportional to 28,189,910.58, 38,905,775.79 and 15,967,179.06

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Solution

The fourth proportional to 28,189,910.58, 38,905,775.79 and 15,967,179.06 is: 22,036,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189,910.58 : 38,905,775.79 = 15,967,179.06 : x
  2. Step 2: Convert to fraction form
    28,189,910.58/38,905,775.79 = 15,967,179.06/x
  3. Step 3: Cross multiply
    28,189,910.58x = 38,905,775.79 × 15,967,179.06
  4. Step 4: Simplify right side
    28,189,910.58x = 621,215,488,507,143
  5. Step 5: Solve for x
    x = 621,215,488,507,143/28,189,910.58
  6. Step 6: Final answer
    x = 22,036,802.38

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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.