Home / 330,879,280.80-496,318,921.20-185,760,458.40

Finding the Fourth Proportional to 330,879,280.80, 496,318,921.20 and 185,760,458.40

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Solution

The fourth proportional to 330,879,280.80, 496,318,921.20 and 185,760,458.40 is: 278,640,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,879,280.80 : 496,318,921.20 = 185,760,458.40 : x
  2. Step 2: Convert to fraction form
    330,879,280.80/496,318,921.20 = 185,760,458.40/x
  3. Step 3: Cross multiply
    330,879,280.80x = 496,318,921.20 × 185,760,458.40
  4. Step 4: Simplify right side
    330,879,280.80x = 92,196,430,314,705,472
  5. Step 5: Solve for x
    x = 92,196,430,314,705,472/330,879,280.80
  6. Step 6: Final answer
    x = 278,640,687.60

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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.