Home / 189,179,327.72-261,067,356.78-102,259,199.72

Finding the Fourth Proportional to 189,179,327.72, 261,067,356.78 and 102,259,199.72

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Solution

The fourth proportional to 189,179,327.72, 261,067,356.78 and 102,259,199.72 is: 141,117,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,179,327.72 : 261,067,356.78 = 102,259,199.72 : x
  2. Step 2: Convert to fraction form
    189,179,327.72/261,067,356.78 = 102,259,199.72/x
  3. Step 3: Cross multiply
    189,179,327.72x = 261,067,356.78 × 102,259,199.72
  4. Step 4: Simplify right side
    189,179,327.72x = 26,696,538,977,338,516
  5. Step 5: Solve for x
    x = 26,696,538,977,338,516/189,179,327.72
  6. Step 6: Final answer
    x = 141,117,633.20

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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.