Home / 587,914,906.32-811,269,837-340,412,965.20

Finding the Fourth Proportional to 587,914,906.32, 811,269,837 and 340,412,965.20

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Solution

The fourth proportional to 587,914,906.32, 811,269,837 and 340,412,965.20 is: 469,739,358.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,914,906.32 : 811,269,837 = 340,412,965.20 : x
  2. Step 2: Convert to fraction form
    587,914,906.32/811,269,837 = 340,412,965.20/x
  3. Step 3: Cross multiply
    587,914,906.32x = 811,269,837 × 340,412,965.20
  4. Step 4: Simplify right side
    587,914,906.32x = 276,166,770,790,490,656
  5. Step 5: Solve for x
    x = 276,166,770,790,490,656/587,914,906.32
  6. Step 6: Final answer
    x = 469,739,358.23

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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.