Home / 499,884,921.14-749,876,662.11-172,317,309.62

Finding the Fourth Proportional to 499,884,921.14, 749,876,662.11 and 172,317,309.62

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Solution

The fourth proportional to 499,884,921.14, 749,876,662.11 and 172,317,309.62 is: 258,492,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,884,921.14 : 749,876,662.11 = 172,317,309.62 : x
  2. Step 2: Convert to fraction form
    499,884,921.14/749,876,662.11 = 172,317,309.62/x
  3. Step 3: Cross multiply
    499,884,921.14x = 749,876,662.11 × 172,317,309.62
  4. Step 4: Simplify right side
    499,884,921.14x = 129,216,728,961,620,992
  5. Step 5: Solve for x
    x = 129,216,728,961,620,992/499,884,921.14
  6. Step 6: Final answer
    x = 258,492,952.07

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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.