Home / 470,059,379.20-705,320,793.60-211,457,612.80

Finding the Fourth Proportional to 470,059,379.20, 705,320,793.60 and 211,457,612.80

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Solution

The fourth proportional to 470,059,379.20, 705,320,793.60 and 211,457,612.80 is: 317,290,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,059,379.20 : 705,320,793.60 = 211,457,612.80 : x
  2. Step 2: Convert to fraction form
    470,059,379.20/705,320,793.60 = 211,457,612.80/x
  3. Step 3: Cross multiply
    470,059,379.20x = 705,320,793.60 × 211,457,612.80
  4. Step 4: Simplify right side
    470,059,379.20x = 149,145,451,272,857,536
  5. Step 5: Solve for x
    x = 149,145,451,272,857,536/470,059,379.20
  6. Step 6: Final answer
    x = 317,290,661.29

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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.