Home / 420,289,917.80-629,301,135.90-420,289,917.80

Finding the Fourth Proportional to 420,289,917.80, 629,301,135.90 and 420,289,917.80

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Solution

The fourth proportional to 420,289,917.80, 629,301,135.90 and 420,289,917.80 is: 629,301,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,289,917.80 : 629,301,135.90 = 420,289,917.80 : x
  2. Step 2: Convert to fraction form
    420,289,917.80/629,301,135.90 = 420,289,917.80/x
  3. Step 3: Cross multiply
    420,289,917.80x = 629,301,135.90 × 420,289,917.80
  4. Step 4: Simplify right side
    420,289,917.80x = 264,488,922,678,857,632
  5. Step 5: Solve for x
    x = 264,488,922,678,857,632/420,289,917.80
  6. Step 6: Final answer
    x = 629,301,135.90

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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.