Home / 196,172,608.80-294,258,913.20-81,118,912.80

Finding the Fourth Proportional to 196,172,608.80, 294,258,913.20 and 81,118,912.80

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Solution

The fourth proportional to 196,172,608.80, 294,258,913.20 and 81,118,912.80 is: 121,678,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,172,608.80 : 294,258,913.20 = 81,118,912.80 : x
  2. Step 2: Convert to fraction form
    196,172,608.80/294,258,913.20 = 81,118,912.80/x
  3. Step 3: Cross multiply
    196,172,608.80x = 294,258,913.20 × 81,118,912.80
  4. Step 4: Simplify right side
    196,172,608.80x = 23,869,963,120,493,568
  5. Step 5: Solve for x
    x = 23,869,963,120,493,568/196,172,608.80
  6. Step 6: Final answer
    x = 121,678,369.20

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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.