Home / 669,348,004.70-1,004,022,007.05-407,453,879.90

Finding the Fourth Proportional to 669,348,004.70, 1,004,022,007.05 and 407,453,879.90

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Solution

The fourth proportional to 669,348,004.70, 1,004,022,007.05 and 407,453,879.90 is: 611,180,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,348,004.70 : 1,004,022,007.05 = 407,453,879.90 : x
  2. Step 2: Convert to fraction form
    669,348,004.70/1,004,022,007.05 = 407,453,879.90/x
  3. Step 3: Cross multiply
    669,348,004.70x = 1,004,022,007.05 × 407,453,879.90
  4. Step 4: Simplify right side
    669,348,004.70x = 409,092,662,277,507,584
  5. Step 5: Solve for x
    x = 409,092,662,277,507,584/669,348,004.70
  6. Step 6: Final answer
    x = 611,180,819.85

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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.