Home / 315,768,860.96-435,895,202.74-196,750,256.83

Finding the Fourth Proportional to 315,768,860.96, 435,895,202.74 and 196,750,256.83

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Solution

The fourth proportional to 315,768,860.96, 435,895,202.74 and 196,750,256.83 is: 271,598,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,768,860.96 : 435,895,202.74 = 196,750,256.83 : x
  2. Step 2: Convert to fraction form
    315,768,860.96/435,895,202.74 = 196,750,256.83/x
  3. Step 3: Cross multiply
    315,768,860.96x = 435,895,202.74 × 196,750,256.83
  4. Step 4: Simplify right side
    315,768,860.96x = 85,762,493,090,059,920
  5. Step 5: Solve for x
    x = 85,762,493,090,059,920/315,768,860.96
  6. Step 6: Final answer
    x = 271,598,956.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.