Home / 256,910,067.07-354,536,242.67-139,435,398.83

Finding the Fourth Proportional to 256,910,067.07, 354,536,242.67 and 139,435,398.83

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Solution

The fourth proportional to 256,910,067.07, 354,536,242.67 and 139,435,398.83 is: 192,421,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,910,067.07 : 354,536,242.67 = 139,435,398.83 : x
  2. Step 2: Convert to fraction form
    256,910,067.07/354,536,242.67 = 139,435,398.83/x
  3. Step 3: Cross multiply
    256,910,067.07x = 354,536,242.67 × 139,435,398.83
  4. Step 4: Simplify right side
    256,910,067.07x = 49,434,902,396,381,120
  5. Step 5: Solve for x
    x = 49,434,902,396,381,120/256,910,067.07
  6. Step 6: Final answer
    x = 192,421,040.41

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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.