Home / 256,911,471.52-354,538,179.08-139,436,805.44

Finding the Fourth Proportional to 256,911,471.52, 354,538,179.08 and 139,436,805.44

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Solution

The fourth proportional to 256,911,471.52, 354,538,179.08 and 139,436,805.44 is: 192,422,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,911,471.52 : 354,538,179.08 = 139,436,805.44 : x
  2. Step 2: Convert to fraction form
    256,911,471.52/354,538,179.08 = 139,436,805.44/x
  3. Step 3: Cross multiply
    256,911,471.52x = 354,538,179.08 × 139,436,805.44
  4. Step 4: Simplify right side
    256,911,471.52x = 49,435,671,097,429,832
  5. Step 5: Solve for x
    x = 49,435,671,097,429,832/256,911,471.52
  6. Step 6: Final answer
    x = 192,422,980.59

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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.