Home / 2,579,327,999.60-3,868,991,999.40-640,631,231.60

Finding the Fourth Proportional to 2,579,327,999.60, 3,868,991,999.40 and 640,631,231.60

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Solution

The fourth proportional to 2,579,327,999.60, 3,868,991,999.40 and 640,631,231.60 is: 960,946,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,327,999.60 : 3,868,991,999.40 = 640,631,231.60 : x
  2. Step 2: Convert to fraction form
    2,579,327,999.60/3,868,991,999.40 = 640,631,231.60/x
  3. Step 3: Cross multiply
    2,579,327,999.60x = 3,868,991,999.40 × 640,631,231.60
  4. Step 4: Simplify right side
    2,579,327,999.60x = 2,478,597,109,626,168,832
  5. Step 5: Solve for x
    x = 2,478,597,109,626,168,832/2,579,327,999.60
  6. Step 6: Final answer
    x = 960,946,847.40

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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.