Home / 664,302,015.40-996,453,023.10-492,115,131.40

Finding the Fourth Proportional to 664,302,015.40, 996,453,023.10 and 492,115,131.40

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Solution

The fourth proportional to 664,302,015.40, 996,453,023.10 and 492,115,131.40 is: 738,172,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,015.40 : 996,453,023.10 = 492,115,131.40 : x
  2. Step 2: Convert to fraction form
    664,302,015.40/996,453,023.10 = 492,115,131.40/x
  3. Step 3: Cross multiply
    664,302,015.40x = 996,453,023.10 × 492,115,131.40
  4. Step 4: Simplify right side
    664,302,015.40x = 490,369,610,396,783,744
  5. Step 5: Solve for x
    x = 490,369,610,396,783,744/664,302,015.40
  6. Step 6: Final answer
    x = 738,172,697.10

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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.