Home / 128,038,205.99-192,057,813.32-30,993,757.79

Finding the Fourth Proportional to 128,038,205.99, 192,057,813.32 and 30,993,757.79

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Solution

The fourth proportional to 128,038,205.99, 192,057,813.32 and 30,993,757.79 is: 46,490,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038,205.99 : 192,057,813.32 = 30,993,757.79 : x
  2. Step 2: Convert to fraction form
    128,038,205.99/192,057,813.32 = 30,993,757.79/x
  3. Step 3: Cross multiply
    128,038,205.99x = 192,057,813.32 × 30,993,757.79
  4. Step 4: Simplify right side
    128,038,205.99x = 5,952,593,346,601,858
  5. Step 5: Solve for x
    x = 5,952,593,346,601,858/128,038,205.99
  6. Step 6: Final answer
    x = 46,490,758.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.