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Finding the Third Proportional to 18,587,718 and 40,263,480

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Solution

The third proportional to 18,587,718 and 40,263,480 is: 87,216,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587,718 : 40,263,480 = 40,263,480 : x
  2. Step 2: Convert to fraction form
    18,587,718/40,263,480 = 40,263,480/x
  3. Step 3: Cross multiply
    18,587,718x = 40,263,480 × 40,263,480
  4. Step 4: Simplify right side
    18,587,718x = 1,621,147,821,710,400
  5. Step 5: Solve for x
    x = 1,621,147,821,710,400/18,587,718
  6. Step 6: Final answer
    x = 87,216,075.78

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.