Home / 20,212,689.28-27,893,876.16-11,045,718.40

Finding the Fourth Proportional to 20,212,689.28, 27,893,876.16 and 11,045,718.40

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Solution

The fourth proportional to 20,212,689.28, 27,893,876.16 and 11,045,718.40 is: 15,243,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,689.28 : 27,893,876.16 = 11,045,718.40 : x
  2. Step 2: Convert to fraction form
    20,212,689.28/27,893,876.16 = 11,045,718.40/x
  3. Step 3: Cross multiply
    20,212,689.28x = 27,893,876.16 × 11,045,718.40
  4. Step 4: Simplify right side
    20,212,689.28x = 308,107,901,147,833.38
  5. Step 5: Solve for x
    x = 308,107,901,147,833.38/20,212,689.28
  6. Step 6: Final answer
    x = 15,243,290.83

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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.