Home / 669,348,003.20-1,004,022,004.80-407,453,878.40

Finding the Fourth Proportional to 669,348,003.20, 1,004,022,004.80 and 407,453,878.40

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Solution

The fourth proportional to 669,348,003.20, 1,004,022,004.80 and 407,453,878.40 is: 611,180,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,348,003.20 : 1,004,022,004.80 = 407,453,878.40 : x
  2. Step 2: Convert to fraction form
    669,348,003.20/1,004,022,004.80 = 407,453,878.40/x
  3. Step 3: Cross multiply
    669,348,003.20x = 1,004,022,004.80 × 407,453,878.40
  4. Step 4: Simplify right side
    669,348,003.20x = 409,092,659,854,703,360
  5. Step 5: Solve for x
    x = 409,092,659,854,703,360/669,348,003.20
  6. Step 6: Final answer
    x = 611,180,817.60

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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.