Home / 128,192,908.32-192,289,603.14-31,148,698.02

Finding the Fourth Proportional to 128,192,908.32, 192,289,603.14 and 31,148,698.02

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Solution

The fourth proportional to 128,192,908.32, 192,289,603.14 and 31,148,698.02 is: 46,723,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,192,908.32 : 192,289,603.14 = 31,148,698.02 : x
  2. Step 2: Convert to fraction form
    128,192,908.32/192,289,603.14 = 31,148,698.02/x
  3. Step 3: Cross multiply
    128,192,908.32x = 192,289,603.14 × 31,148,698.02
  4. Step 4: Simplify right side
    128,192,908.32x = 5,989,570,780,593,503
  5. Step 5: Solve for x
    x = 5,989,570,780,593,503/128,192,908.32
  6. Step 6: Final answer
    x = 46,723,105.51

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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.