Home / 256,519,800.26-353,987,840.61-139,042,608.20

Finding the Fourth Proportional to 256,519,800.26, 353,987,840.61 and 139,042,608.20

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Solution

The fourth proportional to 256,519,800.26, 353,987,840.61 and 139,042,608.20 is: 191,873,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,800.26 : 353,987,840.61 = 139,042,608.20 : x
  2. Step 2: Convert to fraction form
    256,519,800.26/353,987,840.61 = 139,042,608.20/x
  3. Step 3: Cross multiply
    256,519,800.26x = 353,987,840.61 × 139,042,608.20
  4. Step 4: Simplify right side
    256,519,800.26x = 49,219,392,629,500,280
  5. Step 5: Solve for x
    x = 49,219,392,629,500,280/256,519,800.26
  6. Step 6: Final answer
    x = 191,873,658.80

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1.5x scale

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.