Home / 21,290,462.42-31,935,693.62-6,718,858.76

Finding the Fourth Proportional to 21,290,462.42, 31,935,693.62 and 6,718,858.76

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Solution

The fourth proportional to 21,290,462.42, 31,935,693.62 and 6,718,858.76 is: 10,078,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,462.42 : 31,935,693.62 = 6,718,858.76 : x
  2. Step 2: Convert to fraction form
    21,290,462.42/31,935,693.62 = 6,718,858.76/x
  3. Step 3: Cross multiply
    21,290,462.42x = 31,935,693.62 × 6,718,858.76
  4. Step 4: Simplify right side
    21,290,462.42x = 214,571,414,932,049.50
  5. Step 5: Solve for x
    x = 214,571,414,932,049.50/21,290,462.42
  6. Step 6: Final answer
    x = 10,078,288.14

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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.