Home / 603,978,901.08-905,682,109.68-210,368,451.96

Finding the Fourth Proportional to 603,978,901.08, 905,682,109.68 and 210,368,451.96

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Solution

The fourth proportional to 603,978,901.08, 905,682,109.68 and 210,368,451.96 is: 315,452,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,978,901.08 : 905,682,109.68 = 210,368,451.96 : x
  2. Step 2: Convert to fraction form
    603,978,901.08/905,682,109.68 = 210,368,451.96/x
  3. Step 3: Cross multiply
    603,978,901.08x = 905,682,109.68 × 210,368,451.96
  4. Step 4: Simplify right side
    603,978,901.08x = 190,526,943,381,248,512
  5. Step 5: Solve for x
    x = 190,526,943,381,248,512/603,978,901.08
  6. Step 6: Final answer
    x = 315,452,978.64

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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.