Home / 326,207,999.20-489,311,998.80-197,213,490.40

Finding the Fourth Proportional to 326,207,999.20, 489,311,998.80 and 197,213,490.40

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Solution

The fourth proportional to 326,207,999.20, 489,311,998.80 and 197,213,490.40 is: 295,820,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,207,999.20 : 489,311,998.80 = 197,213,490.40 : x
  2. Step 2: Convert to fraction form
    326,207,999.20/489,311,998.80 = 197,213,490.40/x
  3. Step 3: Cross multiply
    326,207,999.20x = 489,311,998.80 × 197,213,490.40
  4. Step 4: Simplify right side
    326,207,999.20x = 96,498,927,177,948,624
  5. Step 5: Solve for x
    x = 96,498,927,177,948,624/326,207,999.20
  6. Step 6: Final answer
    x = 295,820,235.60

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1.5x scale

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.