Home / 199,331,409.20-298,997,113.80-145,583,697.20

Finding the Fourth Proportional to 199,331,409.20, 298,997,113.80 and 145,583,697.20

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Solution

The fourth proportional to 199,331,409.20, 298,997,113.80 and 145,583,697.20 is: 218,375,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331,409.20 : 298,997,113.80 = 145,583,697.20 : x
  2. Step 2: Convert to fraction form
    199,331,409.20/298,997,113.80 = 145,583,697.20/x
  3. Step 3: Cross multiply
    199,331,409.20x = 298,997,113.80 × 145,583,697.20
  4. Step 4: Simplify right side
    199,331,409.20x = 43,529,105,279,133,136
  5. Step 5: Solve for x
    x = 43,529,105,279,133,136/199,331,409.20
  6. Step 6: Final answer
    x = 218,375,545.80

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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.