Home / 268,015,932.40-401,976,075.96-71,280,469.36

Finding the Fourth Proportional to 268,015,932.40, 401,976,075.96 and 71,280,469.36

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Solution

The fourth proportional to 268,015,932.40, 401,976,075.96 and 71,280,469.36 is: 106,907,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,015,932.40 : 401,976,075.96 = 71,280,469.36 : x
  2. Step 2: Convert to fraction form
    268,015,932.40/401,976,075.96 = 71,280,469.36/x
  3. Step 3: Cross multiply
    268,015,932.40x = 401,976,075.96 × 71,280,469.36
  4. Step 4: Simplify right side
    268,015,932.40x = 28,653,043,365,919,812
  5. Step 5: Solve for x
    x = 28,653,043,365,919,812/268,015,932.40
  6. Step 6: Final answer
    x = 106,907,985.32

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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.