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Finding the Fourth Proportional to 200,630,156.40, 300,945,234.60 and 200,630,156.40

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Solution

The fourth proportional to 200,630,156.40, 300,945,234.60 and 200,630,156.40 is: 300,945,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,630,156.40 : 300,945,234.60 = 200,630,156.40 : x
  2. Step 2: Convert to fraction form
    200,630,156.40/300,945,234.60 = 200,630,156.40/x
  3. Step 3: Cross multiply
    200,630,156.40x = 300,945,234.60 × 200,630,156.40
  4. Step 4: Simplify right side
    200,630,156.40x = 60,378,689,485,632,696
  5. Step 5: Solve for x
    x = 60,378,689,485,632,696/200,630,156.40
  6. Step 6: Final answer
    x = 300,945,234.60

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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.