Home / 256,519,795.79-353,987,834.44-139,042,603.76

Finding the Fourth Proportional to 256,519,795.79, 353,987,834.44 and 139,042,603.76

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Solution

The fourth proportional to 256,519,795.79, 353,987,834.44 and 139,042,603.76 is: 191,873,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,795.79 : 353,987,834.44 = 139,042,603.76 : x
  2. Step 2: Convert to fraction form
    256,519,795.79/353,987,834.44 = 139,042,603.76/x
  3. Step 3: Cross multiply
    256,519,795.79x = 353,987,834.44 × 139,042,603.76
  4. Step 4: Simplify right side
    256,519,795.79x = 49,219,390,198,131,464
  5. Step 5: Solve for x
    x = 49,219,390,198,131,464/256,519,795.79
  6. Step 6: Final answer
    x = 191,873,652.66

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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.