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Finding the Third Proportional to 7,768,281 and 12,159,481.50

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Solution

The third proportional to 7,768,281 and 12,159,481.50 is: 19,032,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768,281 : 12,159,481.50 = 12,159,481.50 : x
  2. Step 2: Convert to fraction form
    7,768,281/12,159,481.50 = 12,159,481.50/x
  3. Step 3: Cross multiply
    7,768,281x = 12,159,481.50 × 12,159,481.50
  4. Step 4: Simplify right side
    7,768,281x = 147,852,990,348,842.25
  5. Step 5: Solve for x
    x = 147,852,990,348,842.25/7,768,281
  6. Step 6: Final answer
    x = 19,032,909.64

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.