Home / 756,669,680.60-1,135,004,520.90-411,489,930.20

Finding the Fourth Proportional to 756,669,680.60, 1,135,004,520.90 and 411,489,930.20

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Solution

The fourth proportional to 756,669,680.60, 1,135,004,520.90 and 411,489,930.20 is: 617,234,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,669,680.60 : 1,135,004,520.90 = 411,489,930.20 : x
  2. Step 2: Convert to fraction form
    756,669,680.60/1,135,004,520.90 = 411,489,930.20/x
  3. Step 3: Cross multiply
    756,669,680.60x = 1,135,004,520.90 × 411,489,930.20
  4. Step 4: Simplify right side
    756,669,680.60x = 467,042,931,081,825,472
  5. Step 5: Solve for x
    x = 467,042,931,081,825,472/756,669,680.60
  6. Step 6: Final answer
    x = 617,234,895.30

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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.