Home / 394,081,838.10-590,114,987.55-291,289,338.90

Finding the Fourth Proportional to 394,081,838.10, 590,114,987.55 and 291,289,338.90

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Solution

The fourth proportional to 394,081,838.10, 590,114,987.55 and 291,289,338.90 is: 436,189,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,081,838.10 : 590,114,987.55 = 291,289,338.90 : x
  2. Step 2: Convert to fraction form
    394,081,838.10/590,114,987.55 = 291,289,338.90/x
  3. Step 3: Cross multiply
    394,081,838.10x = 590,114,987.55 × 291,289,338.90
  4. Step 4: Simplify right side
    394,081,838.10x = 171,894,204,598,421,216
  5. Step 5: Solve for x
    x = 171,894,204,598,421,216/394,081,838.10
  6. Step 6: Final answer
    x = 436,189,105.86

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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.