Home / 579,416,520.80-869,124,781.20-307,318,728.80

Finding the Fourth Proportional to 579,416,520.80, 869,124,781.20 and 307,318,728.80

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Solution

The fourth proportional to 579,416,520.80, 869,124,781.20 and 307,318,728.80 is: 460,978,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,416,520.80 : 869,124,781.20 = 307,318,728.80 : x
  2. Step 2: Convert to fraction form
    579,416,520.80/869,124,781.20 = 307,318,728.80/x
  3. Step 3: Cross multiply
    579,416,520.80x = 869,124,781.20 × 307,318,728.80
  4. Step 4: Simplify right side
    579,416,520.80x = 267,098,322,926,962,176
  5. Step 5: Solve for x
    x = 267,098,322,926,962,176/579,416,520.80
  6. Step 6: Final answer
    x = 460,978,093.20

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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.