Home / 256,634,810.29-384,798,485.08-81,682,274.04

Finding the Fourth Proportional to 256,634,810.29, 384,798,485.08 and 81,682,274.04

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Solution

The fourth proportional to 256,634,810.29, 384,798,485.08 and 81,682,274.04 is: 122,474,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,634,810.29 : 384,798,485.08 = 81,682,274.04 : x
  2. Step 2: Convert to fraction form
    256,634,810.29/384,798,485.08 = 81,682,274.04/x
  3. Step 3: Cross multiply
    256,634,810.29x = 384,798,485.08 × 81,682,274.04
  4. Step 4: Simplify right side
    256,634,810.29x = 31,431,215,308,481,412
  5. Step 5: Solve for x
    x = 31,431,215,308,481,412/256,634,810.29
  6. Step 6: Final answer
    x = 122,474,481.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.