Home / 21,217,301.22-31,825,718.55-12,700,015.14

Finding the Fourth Proportional to 21,217,301.22, 31,825,718.55 and 12,700,015.14

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Solution

The fourth proportional to 21,217,301.22, 31,825,718.55 and 12,700,015.14 is: 19,049,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,301.22 : 31,825,718.55 = 12,700,015.14 : x
  2. Step 2: Convert to fraction form
    21,217,301.22/31,825,718.55 = 12,700,015.14/x
  3. Step 3: Cross multiply
    21,217,301.22x = 31,825,718.55 × 12,700,015.14
  4. Step 4: Simplify right side
    21,217,301.22x = 404,187,107,426,378.88
  5. Step 5: Solve for x
    x = 404,187,107,426,378.88/21,217,301.22
  6. Step 6: Final answer
    x = 19,049,883.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.