Home / 81,606,959.60-122,410,439.40-21,022,685.60

Finding the Fourth Proportional to 81,606,959.60, 122,410,439.40 and 21,022,685.60

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Solution

The fourth proportional to 81,606,959.60, 122,410,439.40 and 21,022,685.60 is: 31,534,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,606,959.60 : 122,410,439.40 = 21,022,685.60 : x
  2. Step 2: Convert to fraction form
    81,606,959.60/122,410,439.40 = 21,022,685.60/x
  3. Step 3: Cross multiply
    81,606,959.60x = 122,410,439.40 × 21,022,685.60
  4. Step 4: Simplify right side
    81,606,959.60x = 2,573,396,181,664,053
  5. Step 5: Solve for x
    x = 2,573,396,181,664,053/81,606,959.60
  6. Step 6: Final answer
    x = 31,534,028.40

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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.