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Finding the Third Proportional to 5,718,879 and 8,915,931

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Solution

The third proportional to 5,718,879 and 8,915,931 is: 13,900,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718,879 : 8,915,931 = 8,915,931 : x
  2. Step 2: Convert to fraction form
    5,718,879/8,915,931 = 8,915,931/x
  3. Step 3: Cross multiply
    5,718,879x = 8,915,931 × 8,915,931
  4. Step 4: Simplify right side
    5,718,879x = 79,493,825,596,761
  5. Step 5: Solve for x
    x = 79,493,825,596,761/5,718,879
  6. Step 6: Final answer
    x = 13,900,246.11

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.