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Finding the Third Proportional to 4,147,886 and 6,398,709

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Solution

The third proportional to 4,147,886 and 6,398,709 is: 9,870,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147,886 : 6,398,709 = 6,398,709 : x
  2. Step 2: Convert to fraction form
    4,147,886/6,398,709 = 6,398,709/x
  3. Step 3: Cross multiply
    4,147,886x = 6,398,709 × 6,398,709
  4. Step 4: Simplify right side
    4,147,886x = 40,943,476,866,681
  5. Step 5: Solve for x
    x = 40,943,476,866,681/4,147,886
  6. Step 6: Final answer
    x = 9,870,926.27

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.