Home / 203,185,090.78-280,418,686.12-113,901,149.64

Finding the Fourth Proportional to 203,185,090.78, 280,418,686.12 and 113,901,149.64

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Solution

The fourth proportional to 203,185,090.78, 280,418,686.12 and 113,901,149.64 is: 157,196,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,185,090.78 : 280,418,686.12 = 113,901,149.64 : x
  2. Step 2: Convert to fraction form
    203,185,090.78/280,418,686.12 = 113,901,149.64/x
  3. Step 3: Cross multiply
    203,185,090.78x = 280,418,686.12 × 113,901,149.64
  4. Step 4: Simplify right side
    203,185,090.78x = 31,940,010,729,606,312
  5. Step 5: Solve for x
    x = 31,940,010,729,606,312/203,185,090.78
  6. Step 6: Final answer
    x = 157,196,626.03

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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.