Home / 85,414,873.50-128,326,706.82-54,769,494.06

Finding the Fourth Proportional to 85,414,873.50, 128,326,706.82 and 54,769,494.06

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Solution

The fourth proportional to 85,414,873.50, 128,326,706.82 and 54,769,494.06 is: 82,285,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414,873.50 : 128,326,706.82 = 54,769,494.06 : x
  2. Step 2: Convert to fraction form
    85,414,873.50/128,326,706.82 = 54,769,494.06/x
  3. Step 3: Cross multiply
    85,414,873.50x = 128,326,706.82 × 54,769,494.06
  4. Step 4: Simplify right side
    85,414,873.50x = 7,028,388,806,917,351
  5. Step 5: Solve for x
    x = 7,028,388,806,917,351/85,414,873.50
  6. Step 6: Final answer
    x = 82,285,303.71

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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.