Home / 256,131,616.95-353,461,745.43-138,656,943.39

Finding the Fourth Proportional to 256,131,616.95, 353,461,745.43 and 138,656,943.39

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Solution

The fourth proportional to 256,131,616.95, 353,461,745.43 and 138,656,943.39 is: 191,346,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,131,616.95 : 353,461,745.43 = 138,656,943.39 : x
  2. Step 2: Convert to fraction form
    256,131,616.95/353,461,745.43 = 138,656,943.39/x
  3. Step 3: Cross multiply
    256,131,616.95x = 353,461,745.43 × 138,656,943.39
  4. Step 4: Simplify right side
    256,131,616.95x = 49,009,925,226,618,096
  5. Step 5: Solve for x
    x = 49,009,925,226,618,096/256,131,616.95
  6. Step 6: Final answer
    x = 191,346,643.61

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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.