Home / 168,529,280.40-252,856,906.20-66,364,537.68

Finding the Fourth Proportional to 168,529,280.40, 252,856,906.20 and 66,364,537.68

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Solution

The fourth proportional to 168,529,280.40, 252,856,906.20 and 66,364,537.68 is: 99,571,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,529,280.40 : 252,856,906.20 = 66,364,537.68 : x
  2. Step 2: Convert to fraction form
    168,529,280.40/252,856,906.20 = 66,364,537.68/x
  3. Step 3: Cross multiply
    168,529,280.40x = 252,856,906.20 × 66,364,537.68
  4. Step 4: Simplify right side
    168,529,280.40x = 16,780,731,679,158,124
  5. Step 5: Solve for x
    x = 16,780,731,679,158,124/168,529,280.40
  6. Step 6: Final answer
    x = 99,571,609.39

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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.