Home / 281,268,705.40-421,813,619.60-262,906,870.05

Finding the Fourth Proportional to 281,268,705.40, 421,813,619.60 and 262,906,870.05

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Solution

The fourth proportional to 281,268,705.40, 421,813,619.60 and 262,906,870.05 is: 394,276,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,268,705.40 : 421,813,619.60 = 262,906,870.05 : x
  2. Step 2: Convert to fraction form
    281,268,705.40/421,813,619.60 = 262,906,870.05/x
  3. Step 3: Cross multiply
    281,268,705.40x = 421,813,619.60 × 262,906,870.05
  4. Step 4: Simplify right side
    281,268,705.40x = 110,897,698,474,849,840
  5. Step 5: Solve for x
    x = 110,897,698,474,849,840/281,268,705.40
  6. Step 6: Final answer
    x = 394,276,705.32

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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.