Home / 15,322,851.30-21,145,679.08-8,447,579.40

Finding the Fourth Proportional to 15,322,851.30, 21,145,679.08 and 8,447,579.40

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Solution

The fourth proportional to 15,322,851.30, 21,145,679.08 and 8,447,579.40 is: 11,657,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,851.30 : 21,145,679.08 = 8,447,579.40 : x
  2. Step 2: Convert to fraction form
    15,322,851.30/21,145,679.08 = 8,447,579.40/x
  3. Step 3: Cross multiply
    15,322,851.30x = 21,145,679.08 × 8,447,579.40
  4. Step 4: Simplify right side
    15,322,851.30x = 178,629,802,974,100.03
  5. Step 5: Solve for x
    x = 178,629,802,974,100.03/15,322,851.30
  6. Step 6: Final answer
    x = 11,657,739.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.