Home / 280,039,376.40-419,387,218.20-136,264,246.80

Finding the Fourth Proportional to 280,039,376.40, 419,387,218.20 and 136,264,246.80

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Solution

The fourth proportional to 280,039,376.40, 419,387,218.20 and 136,264,246.80 is: 204,069,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039,376.40 : 419,387,218.20 = 136,264,246.80 : x
  2. Step 2: Convert to fraction form
    280,039,376.40/419,387,218.20 = 136,264,246.80/x
  3. Step 3: Cross multiply
    280,039,376.40x = 419,387,218.20 × 136,264,246.80
  4. Step 4: Simplify right side
    280,039,376.40x = 57,147,483,405,570,256
  5. Step 5: Solve for x
    x = 57,147,483,405,570,256/280,039,376.40
  6. Step 6: Final answer
    x = 204,069,456.73

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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.