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Finding the Third Proportional to 4,075,972 and 8,790,346

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Solution

The third proportional to 4,075,972 and 8,790,346 is: 18,957,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075,972 : 8,790,346 = 8,790,346 : x
  2. Step 2: Convert to fraction form
    4,075,972/8,790,346 = 8,790,346/x
  3. Step 3: Cross multiply
    4,075,972x = 8,790,346 × 8,790,346
  4. Step 4: Simplify right side
    4,075,972x = 77,270,182,799,716
  5. Step 5: Solve for x
    x = 77,270,182,799,716/4,075,972
  6. Step 6: Final answer
    x = 18,957,486.17

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.