Home / 331,330,998.30-496,996,497.45-280,312,662.30

Finding the Fourth Proportional to 331,330,998.30, 496,996,497.45 and 280,312,662.30

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Solution

The fourth proportional to 331,330,998.30, 496,996,497.45 and 280,312,662.30 is: 420,468,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,330,998.30 : 496,996,497.45 = 280,312,662.30 : x
  2. Step 2: Convert to fraction form
    331,330,998.30/496,996,497.45 = 280,312,662.30/x
  3. Step 3: Cross multiply
    331,330,998.30x = 496,996,497.45 × 280,312,662.30
  4. Step 4: Simplify right side
    331,330,998.30x = 139,314,411,353,984,656
  5. Step 5: Solve for x
    x = 139,314,411,353,984,656/331,330,998.30
  6. Step 6: Final answer
    x = 420,468,993.45

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Similar ratio
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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.