Home / 663,428,561.40-995,142,842.10-445,183,457.40

Finding the Fourth Proportional to 663,428,561.40, 995,142,842.10 and 445,183,457.40

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Solution

The fourth proportional to 663,428,561.40, 995,142,842.10 and 445,183,457.40 is: 667,775,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,428,561.40 : 995,142,842.10 = 445,183,457.40 : x
  2. Step 2: Convert to fraction form
    663,428,561.40/995,142,842.10 = 445,183,457.40/x
  3. Step 3: Cross multiply
    663,428,561.40x = 995,142,842.10 × 445,183,457.40
  4. Step 4: Simplify right side
    663,428,561.40x = 443,021,131,052,940,288
  5. Step 5: Solve for x
    x = 443,021,131,052,940,288/663,428,561.40
  6. Step 6: Final answer
    x = 667,775,186.10

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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.