Home / 580,243,021.20-800,727,858.18-315,921,982.50

Finding the Fourth Proportional to 580,243,021.20, 800,727,858.18 and 315,921,982.50

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Solution

The fourth proportional to 580,243,021.20, 800,727,858.18 and 315,921,982.50 is: 435,968,246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,243,021.20 : 800,727,858.18 = 315,921,982.50 : x
  2. Step 2: Convert to fraction form
    580,243,021.20/800,727,858.18 = 315,921,982.50/x
  3. Step 3: Cross multiply
    580,243,021.20x = 800,727,858.18 × 315,921,982.50
  4. Step 4: Simplify right side
    580,243,021.20x = 252,967,532,399,204,416
  5. Step 5: Solve for x
    x = 252,967,532,399,204,416/580,243,021.20
  6. Step 6: Final answer
    x = 435,968,246.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.