Home / 256,519,802.76-353,987,844.06-139,042,610.70

Finding the Fourth Proportional to 256,519,802.76, 353,987,844.06 and 139,042,610.70

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Solution

The fourth proportional to 256,519,802.76, 353,987,844.06 and 139,042,610.70 is: 191,873,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,802.76 : 353,987,844.06 = 139,042,610.70 : x
  2. Step 2: Convert to fraction form
    256,519,802.76/353,987,844.06 = 139,042,610.70/x
  3. Step 3: Cross multiply
    256,519,802.76x = 353,987,844.06 × 139,042,610.70
  4. Step 4: Simplify right side
    256,519,802.76x = 49,219,393,994,166,880
  5. Step 5: Solve for x
    x = 49,219,393,994,166,880/256,519,802.76
  6. Step 6: Final answer
    x = 191,873,662.25

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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.