Home / 354,278,507.20-488,469,984.24-291,334,638.40

Finding the Fourth Proportional to 354,278,507.20, 488,469,984.24 and 291,334,638.40

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Solution

The fourth proportional to 354,278,507.20, 488,469,984.24 and 291,334,638.40 is: 401,684,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,278,507.20 : 488,469,984.24 = 291,334,638.40 : x
  2. Step 2: Convert to fraction form
    354,278,507.20/488,469,984.24 = 291,334,638.40/x
  3. Step 3: Cross multiply
    354,278,507.20x = 488,469,984.24 × 291,334,638.40
  4. Step 4: Simplify right side
    354,278,507.20x = 142,308,226,227,814,096
  5. Step 5: Solve for x
    x = 142,308,226,227,814,096/354,278,507.20
  6. Step 6: Final answer
    x = 401,684,616.30

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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.