Home / 291,253,198.40-436,879,797.60-75,842,446.40

Finding the Fourth Proportional to 291,253,198.40, 436,879,797.60 and 75,842,446.40

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Solution

The fourth proportional to 291,253,198.40, 436,879,797.60 and 75,842,446.40 is: 113,763,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,253,198.40 : 436,879,797.60 = 75,842,446.40 : x
  2. Step 2: Convert to fraction form
    291,253,198.40/436,879,797.60 = 75,842,446.40/x
  3. Step 3: Cross multiply
    291,253,198.40x = 436,879,797.60 × 75,842,446.40
  4. Step 4: Simplify right side
    291,253,198.40x = 33,134,032,632,720,852
  5. Step 5: Solve for x
    x = 33,134,032,632,720,852/291,253,198.40
  6. Step 6: Final answer
    x = 113,763,669.60

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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.