Home / 148,320,761.72-204,663,838.05-81,322,088.54

Finding the Fourth Proportional to 148,320,761.72, 204,663,838.05 and 81,322,088.54

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Solution

The fourth proportional to 148,320,761.72, 204,663,838.05 and 81,322,088.54 is: 112,214,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,320,761.72 : 204,663,838.05 = 81,322,088.54 : x
  2. Step 2: Convert to fraction form
    148,320,761.72/204,663,838.05 = 81,322,088.54/x
  3. Step 3: Cross multiply
    148,320,761.72x = 204,663,838.05 × 81,322,088.54
  4. Step 4: Simplify right side
    148,320,761.72x = 16,643,690,757,815,002
  5. Step 5: Solve for x
    x = 16,643,690,757,815,002/148,320,761.72
  6. Step 6: Final answer
    x = 112,214,167.22

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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.