Home / 15,322,812.92-21,145,644.81-8,447,541.02

Finding the Fourth Proportional to 15,322,812.92, 21,145,644.81 and 8,447,541.02

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Solution

The fourth proportional to 15,322,812.92, 21,145,644.81 and 8,447,541.02 is: 11,657,696.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,812.92 : 21,145,644.81 = 8,447,541.02 : x
  2. Step 2: Convert to fraction form
    15,322,812.92/21,145,644.81 = 8,447,541.02/x
  3. Step 3: Cross multiply
    15,322,812.92x = 21,145,644.81 × 8,447,541.02
  4. Step 4: Simplify right side
    15,322,812.92x = 178,628,701,926,825.09
  5. Step 5: Solve for x
    x = 178,628,701,926,825.09/15,322,812.92
  6. Step 6: Final answer
    x = 11,657,696.46

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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.