Home / 189,179,189.72-261,067,166.34-102,259,061.72

Finding the Fourth Proportional to 189,179,189.72, 261,067,166.34 and 102,259,061.72

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Solution

The fourth proportional to 189,179,189.72, 261,067,166.34 and 102,259,061.72 is: 141,117,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,179,189.72 : 261,067,166.34 = 102,259,061.72 : x
  2. Step 2: Convert to fraction form
    189,179,189.72/261,067,166.34 = 102,259,061.72/x
  3. Step 3: Cross multiply
    189,179,189.72x = 261,067,166.34 × 102,259,061.72
  4. Step 4: Simplify right side
    189,179,189.72x = 26,696,483,475,827,568
  5. Step 5: Solve for x
    x = 26,696,483,475,827,568/189,179,189.72
  6. Step 6: Final answer
    x = 141,117,442.76

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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.