Home / 81,684,903.60-122,527,355.40-21,100,629.60

Finding the Fourth Proportional to 81,684,903.60, 122,527,355.40 and 21,100,629.60

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Solution

The fourth proportional to 81,684,903.60, 122,527,355.40 and 21,100,629.60 is: 31,650,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,684,903.60 : 122,527,355.40 = 21,100,629.60 : x
  2. Step 2: Convert to fraction form
    81,684,903.60/122,527,355.40 = 21,100,629.60/x
  3. Step 3: Cross multiply
    81,684,903.60x = 122,527,355.40 × 21,100,629.60
  4. Step 4: Simplify right side
    81,684,903.60x = 2,585,404,342,162,960
  5. Step 5: Solve for x
    x = 2,585,404,342,162,960/81,684,903.60
  6. Step 6: Final answer
    x = 31,650,944.40

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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.