Home / 256,634,803.82-384,798,475.41-81,682,267.58

Finding the Fourth Proportional to 256,634,803.82, 384,798,475.41 and 81,682,267.58

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Solution

The fourth proportional to 256,634,803.82, 384,798,475.41 and 81,682,267.58 is: 122,474,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,634,803.82 : 384,798,475.41 = 81,682,267.58 : x
  2. Step 2: Convert to fraction form
    256,634,803.82/384,798,475.41 = 81,682,267.58/x
  3. Step 3: Cross multiply
    256,634,803.82x = 384,798,475.41 × 81,682,267.58
  4. Step 4: Simplify right side
    256,634,803.82x = 31,431,212,032,815,672
  5. Step 5: Solve for x
    x = 31,431,212,032,815,672/256,634,803.82
  6. Step 6: Final answer
    x = 122,474,471.76

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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.