Home / 318,218,336.64-439,136,893.92-178,989,192.48

Finding the Fourth Proportional to 318,218,336.64, 439,136,893.92 and 178,989,192.48

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Solution

The fourth proportional to 318,218,336.64, 439,136,893.92 and 178,989,192.48 is: 247,002,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,218,336.64 : 439,136,893.92 = 178,989,192.48 : x
  2. Step 2: Convert to fraction form
    318,218,336.64/439,136,893.92 = 178,989,192.48/x
  3. Step 3: Cross multiply
    318,218,336.64x = 439,136,893.92 × 178,989,192.48
  4. Step 4: Simplify right side
    318,218,336.64x = 78,600,758,030,916,224
  5. Step 5: Solve for x
    x = 78,600,758,030,916,224/318,218,336.64
  6. Step 6: Final answer
    x = 247,002,604.76

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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.