Home / 323,740,355.70-485,610,533.55-289,728,131.70

Finding the Fourth Proportional to 323,740,355.70, 485,610,533.55 and 289,728,131.70

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Solution

The fourth proportional to 323,740,355.70, 485,610,533.55 and 289,728,131.70 is: 434,592,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,740,355.70 : 485,610,533.55 = 289,728,131.70 : x
  2. Step 2: Convert to fraction form
    323,740,355.70/485,610,533.55 = 289,728,131.70/x
  3. Step 3: Cross multiply
    323,740,355.70x = 485,610,533.55 × 289,728,131.70
  4. Step 4: Simplify right side
    323,740,355.70x = 140,695,032,619,281,664
  5. Step 5: Solve for x
    x = 140,695,032,619,281,664/323,740,355.70
  6. Step 6: Final answer
    x = 434,592,197.55

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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.