Home / 256,187,800.16-353,539,330.80-138,713,213.60

Finding the Fourth Proportional to 256,187,800.16, 353,539,330.80 and 138,713,213.60

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Solution

The fourth proportional to 256,187,800.16, 353,539,330.80 and 138,713,213.60 is: 191,424,324.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,187,800.16 : 353,539,330.80 = 138,713,213.60 : x
  2. Step 2: Convert to fraction form
    256,187,800.16/353,539,330.80 = 138,713,213.60/x
  3. Step 3: Cross multiply
    256,187,800.16x = 353,539,330.80 × 138,713,213.60
  4. Step 4: Simplify right side
    256,187,800.16x = 49,040,576,709,261,456
  5. Step 5: Solve for x
    x = 49,040,576,709,261,456/256,187,800.16
  6. Step 6: Final answer
    x = 191,424,324.96

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1.5x scale

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.