Home / 353,206,458.12-487,424,913.93-196,610,558.61

Finding the Fourth Proportional to 353,206,458.12, 487,424,913.93 and 196,610,558.61

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Solution

The fourth proportional to 353,206,458.12, 487,424,913.93 and 196,610,558.61 is: 271,322,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,206,458.12 : 487,424,913.93 = 196,610,558.61 : x
  2. Step 2: Convert to fraction form
    353,206,458.12/487,424,913.93 = 196,610,558.61/x
  3. Step 3: Cross multiply
    353,206,458.12x = 487,424,913.93 × 196,610,558.61
  4. Step 4: Simplify right side
    353,206,458.12x = 95,832,884,608,208,480
  5. Step 5: Solve for x
    x = 95,832,884,608,208,480/353,206,458.12
  6. Step 6: Final answer
    x = 271,322,571.84

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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.