Home / 189,365,487.20-284,048,230.80-68,181,192.80

Finding the Fourth Proportional to 189,365,487.20, 284,048,230.80 and 68,181,192.80

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Solution

The fourth proportional to 189,365,487.20, 284,048,230.80 and 68,181,192.80 is: 102,271,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,365,487.20 : 284,048,230.80 = 68,181,192.80 : x
  2. Step 2: Convert to fraction form
    189,365,487.20/284,048,230.80 = 68,181,192.80/x
  3. Step 3: Cross multiply
    189,365,487.20x = 284,048,230.80 × 68,181,192.80
  4. Step 4: Simplify right side
    189,365,487.20x = 19,366,747,188,673,700
  5. Step 5: Solve for x
    x = 19,366,747,188,673,700/189,365,487.20
  6. Step 6: Final answer
    x = 102,271,789.20

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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.