Home / 15,322,806.42-21,145,635.81-8,447,534.52

Finding the Fourth Proportional to 15,322,806.42, 21,145,635.81 and 8,447,534.52

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Solution

The fourth proportional to 15,322,806.42, 21,145,635.81 and 8,447,534.52 is: 11,657,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,806.42 : 21,145,635.81 = 8,447,534.52 : x
  2. Step 2: Convert to fraction form
    15,322,806.42/21,145,635.81 = 8,447,534.52/x
  3. Step 3: Cross multiply
    15,322,806.42x = 21,145,635.81 × 8,447,534.52
  4. Step 4: Simplify right side
    15,322,806.42x = 178,628,488,452,323.12
  5. Step 5: Solve for x
    x = 178,628,488,452,323.12/15,322,806.42
  6. Step 6: Final answer
    x = 11,657,687.47

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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.