Home / 326,427,997.20-489,641,995.80-111,017,245.20

Finding the Fourth Proportional to 326,427,997.20, 489,641,995.80 and 111,017,245.20

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Solution

The fourth proportional to 326,427,997.20, 489,641,995.80 and 111,017,245.20 is: 166,525,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,427,997.20 : 489,641,995.80 = 111,017,245.20 : x
  2. Step 2: Convert to fraction form
    326,427,997.20/489,641,995.80 = 111,017,245.20/x
  3. Step 3: Cross multiply
    326,427,997.20x = 489,641,995.80 × 111,017,245.20
  4. Step 4: Simplify right side
    326,427,997.20x = 54,358,705,507,945,976
  5. Step 5: Solve for x
    x = 54,358,705,507,945,976/326,427,997.20
  6. Step 6: Final answer
    x = 166,525,867.80

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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.