Home / 260,241,618.30-390,362,427.45-143,340,344.70

Finding the Fourth Proportional to 260,241,618.30, 390,362,427.45 and 143,340,344.70

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Solution

The fourth proportional to 260,241,618.30, 390,362,427.45 and 143,340,344.70 is: 215,010,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,241,618.30 : 390,362,427.45 = 143,340,344.70 : x
  2. Step 2: Convert to fraction form
    260,241,618.30/390,362,427.45 = 143,340,344.70/x
  3. Step 3: Cross multiply
    260,241,618.30x = 390,362,427.45 × 143,340,344.70
  4. Step 4: Simplify right side
    260,241,618.30x = 55,954,684,908,611,736
  5. Step 5: Solve for x
    x = 55,954,684,908,611,736/260,241,618.30
  6. Step 6: Final answer
    x = 215,010,517.05

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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.