Home / 102,840,749.92-141,922,835.67-56,430,991.54

Finding the Fourth Proportional to 102,840,749.92, 141,922,835.67 and 56,430,991.54

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Solution

The fourth proportional to 102,840,749.92, 141,922,835.67 and 56,430,991.54 is: 77,876,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,840,749.92 : 141,922,835.67 = 56,430,991.54 : x
  2. Step 2: Convert to fraction form
    102,840,749.92/141,922,835.67 = 56,430,991.54/x
  3. Step 3: Cross multiply
    102,840,749.92x = 141,922,835.67 × 56,430,991.54
  4. Step 4: Simplify right side
    102,840,749.92x = 8,008,846,339,026,579
  5. Step 5: Solve for x
    x = 8,008,846,339,026,579/102,840,749.92
  6. Step 6: Final answer
    x = 77,876,195.43

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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.