Home / 326,439,423.60-489,021,406.20-196,661,531.40

Finding the Fourth Proportional to 326,439,423.60, 489,021,406.20 and 196,661,531.40

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Solution

The fourth proportional to 326,439,423.60, 489,021,406.20 and 196,661,531.40 is: 294,608,100.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,439,423.60 : 489,021,406.20 = 196,661,531.40 : x
  2. Step 2: Convert to fraction form
    326,439,423.60/489,021,406.20 = 196,661,531.40/x
  3. Step 3: Cross multiply
    326,439,423.60x = 489,021,406.20 × 196,661,531.40
  4. Step 4: Simplify right side
    326,439,423.60x = 96,171,698,630,673,456
  5. Step 5: Solve for x
    x = 96,171,698,630,673,456/326,439,423.60
  6. Step 6: Final answer
    x = 294,608,100.85

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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.