Home / 280,882,000.80-420,501,855.60-200,260,432.80

Finding the Fourth Proportional to 280,882,000.80, 420,501,855.60 and 200,260,432.80

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Solution

The fourth proportional to 280,882,000.80, 420,501,855.60 and 200,260,432.80 is: 299,805,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,882,000.80 : 420,501,855.60 = 200,260,432.80 : x
  2. Step 2: Convert to fraction form
    280,882,000.80/420,501,855.60 = 200,260,432.80/x
  3. Step 3: Cross multiply
    280,882,000.80x = 420,501,855.60 × 200,260,432.80
  4. Step 4: Simplify right side
    280,882,000.80x = 84,209,883,595,659,120
  5. Step 5: Solve for x
    x = 84,209,883,595,659,120/280,882,000.80
  6. Step 6: Final answer
    x = 299,805,197.04

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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.