Home / 398,606,720.80-597,910,081.20-333,983,495.20

Finding the Fourth Proportional to 398,606,720.80, 597,910,081.20 and 333,983,495.20

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Solution

The fourth proportional to 398,606,720.80, 597,910,081.20 and 333,983,495.20 is: 500,975,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,606,720.80 : 597,910,081.20 = 333,983,495.20 : x
  2. Step 2: Convert to fraction form
    398,606,720.80/597,910,081.20 = 333,983,495.20/x
  3. Step 3: Cross multiply
    398,606,720.80x = 597,910,081.20 × 333,983,495.20
  4. Step 4: Simplify right side
    398,606,720.80x = 199,692,098,734,491,808
  5. Step 5: Solve for x
    x = 199,692,098,734,491,808/398,606,720.80
  6. Step 6: Final answer
    x = 500,975,242.80

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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.