Home / 228,364,647.89-315,143,525.57-123,942,720.69

Finding the Fourth Proportional to 228,364,647.89, 315,143,525.57 and 123,942,720.69

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Solution

The fourth proportional to 228,364,647.89, 315,143,525.57 and 123,942,720.69 is: 171,041,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,364,647.89 : 315,143,525.57 = 123,942,720.69 : x
  2. Step 2: Convert to fraction form
    228,364,647.89/315,143,525.57 = 123,942,720.69/x
  3. Step 3: Cross multiply
    228,364,647.89x = 315,143,525.57 × 123,942,720.69
  4. Step 4: Simplify right side
    228,364,647.89x = 39,059,745,966,364,672
  5. Step 5: Solve for x
    x = 39,059,745,966,364,672/228,364,647.89
  6. Step 6: Final answer
    x = 171,041,123.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.