Home / 281,268,709.40-421,813,625.60-262,906,874.06

Finding the Fourth Proportional to 281,268,709.40, 421,813,625.60 and 262,906,874.06

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Solution

The fourth proportional to 281,268,709.40, 421,813,625.60 and 262,906,874.06 is: 394,276,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,268,709.40 : 421,813,625.60 = 262,906,874.06 : x
  2. Step 2: Convert to fraction form
    281,268,709.40/421,813,625.60 = 262,906,874.06/x
  3. Step 3: Cross multiply
    281,268,709.40x = 421,813,625.60 × 262,906,874.06
  4. Step 4: Simplify right side
    281,268,709.40x = 110,897,701,742,411,200
  5. Step 5: Solve for x
    x = 110,897,701,742,411,200/281,268,709.40
  6. Step 6: Final answer
    x = 394,276,711.33

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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.