Home / 520,846,861.96-718,441,727.70-309,003,711.13

Finding the Fourth Proportional to 520,846,861.96, 718,441,727.70 and 309,003,711.13

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Solution

The fourth proportional to 520,846,861.96, 718,441,727.70 and 309,003,711.13 is: 426,231,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,846,861.96 : 718,441,727.70 = 309,003,711.13 : x
  2. Step 2: Convert to fraction form
    520,846,861.96/718,441,727.70 = 309,003,711.13/x
  3. Step 3: Cross multiply
    520,846,861.96x = 718,441,727.70 × 309,003,711.13
  4. Step 4: Simplify right side
    520,846,861.96x = 222,001,160,089,948,928
  5. Step 5: Solve for x
    x = 222,001,160,089,948,928/520,846,861.96
  6. Step 6: Final answer
    x = 426,231,156.03

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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.