Home / 21,290,464.29-31,935,696.44-6,718,860.64

Finding the Fourth Proportional to 21,290,464.29, 31,935,696.44 and 6,718,860.64

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Solution

The fourth proportional to 21,290,464.29, 31,935,696.44 and 6,718,860.64 is: 10,078,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,464.29 : 31,935,696.44 = 6,718,860.64 : x
  2. Step 2: Convert to fraction form
    21,290,464.29/31,935,696.44 = 6,718,860.64/x
  3. Step 3: Cross multiply
    21,290,464.29x = 31,935,696.44 × 6,718,860.64
  4. Step 4: Simplify right side
    21,290,464.29x = 214,571,493,708,270.56
  5. Step 5: Solve for x
    x = 214,571,493,708,270.56/21,290,464.29
  6. Step 6: Final answer
    x = 10,078,290.96

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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.