Home / 355,423,733.12-490,481,125.44-198,790,466.24

Finding the Fourth Proportional to 355,423,733.12, 490,481,125.44 and 198,790,466.24

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Solution

The fourth proportional to 355,423,733.12, 490,481,125.44 and 198,790,466.24 is: 274,328,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,423,733.12 : 490,481,125.44 = 198,790,466.24 : x
  2. Step 2: Convert to fraction form
    355,423,733.12/490,481,125.44 = 198,790,466.24/x
  3. Step 3: Cross multiply
    355,423,733.12x = 490,481,125.44 × 198,790,466.24
  4. Step 4: Simplify right side
    355,423,733.12x = 97,502,971,608,137,536
  5. Step 5: Solve for x
    x = 97,502,971,608,137,536/355,423,733.12
  6. Step 6: Final answer
    x = 274,328,815.22

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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.