Home / 21,154,464.30-31,731,696.45-5,198,112.30

Finding the Fourth Proportional to 21,154,464.30, 31,731,696.45 and 5,198,112.30

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Solution

The fourth proportional to 21,154,464.30, 31,731,696.45 and 5,198,112.30 is: 7,797,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154,464.30 : 31,731,696.45 = 5,198,112.30 : x
  2. Step 2: Convert to fraction form
    21,154,464.30/31,731,696.45 = 5,198,112.30/x
  3. Step 3: Cross multiply
    21,154,464.30x = 31,731,696.45 × 5,198,112.30
  4. Step 4: Simplify right side
    21,154,464.30x = 164,944,921,616,611.31
  5. Step 5: Solve for x
    x = 164,944,921,616,611.31/21,154,464.30
  6. Step 6: Final answer
    x = 7,797,168.45

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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.