Home / 521,993,958.68-782,823,465.38-172,161,372.80

Finding the Fourth Proportional to 521,993,958.68, 782,823,465.38 and 172,161,372.80

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Solution

The fourth proportional to 521,993,958.68, 782,823,465.38 and 172,161,372.80 is: 258,186,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,993,958.68 : 782,823,465.38 = 172,161,372.80 : x
  2. Step 2: Convert to fraction form
    521,993,958.68/782,823,465.38 = 172,161,372.80/x
  3. Step 3: Cross multiply
    521,993,958.68x = 782,823,465.38 × 172,161,372.80
  4. Step 4: Simplify right side
    521,993,958.68x = 134,771,962,459,874,080
  5. Step 5: Solve for x
    x = 134,771,962,459,874,080/521,993,958.68
  6. Step 6: Final answer
    x = 258,186,824.23

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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.