Home / 658,793,142.62-988,196,800.89-198,735,299.90

Finding the Fourth Proportional to 658,793,142.62, 988,196,800.89 and 198,735,299.90

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Solution

The fourth proportional to 658,793,142.62, 988,196,800.89 and 198,735,299.90 is: 298,105,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,793,142.62 : 988,196,800.89 = 198,735,299.90 : x
  2. Step 2: Convert to fraction form
    658,793,142.62/988,196,800.89 = 198,735,299.90/x
  3. Step 3: Cross multiply
    658,793,142.62x = 988,196,800.89 × 198,735,299.90
  4. Step 4: Simplify right side
    658,793,142.62x = 196,389,587,580,153,760
  5. Step 5: Solve for x
    x = 196,389,587,580,153,760/658,793,142.62
  6. Step 6: Final answer
    x = 298,105,087.74

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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.