Home / 1,273,312,379.92-1,909,968,446.76-353,188,758.64

Finding the Fourth Proportional to 1,273,312,379.92, 1,909,968,446.76 and 353,188,758.64

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Solution

The fourth proportional to 1,273,312,379.92, 1,909,968,446.76 and 353,188,758.64 is: 529,783,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,312,379.92 : 1,909,968,446.76 = 353,188,758.64 : x
  2. Step 2: Convert to fraction form
    1,273,312,379.92/1,909,968,446.76 = 353,188,758.64/x
  3. Step 3: Cross multiply
    1,273,312,379.92x = 1,909,968,446.76 × 353,188,758.64
  4. Step 4: Simplify right side
    1,273,312,379.92x = 674,579,384,752,733,312
  5. Step 5: Solve for x
    x = 674,579,384,752,733,312/1,273,312,379.92
  6. Step 6: Final answer
    x = 529,783,103.81

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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.