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Finding the Third Proportional to 4,571,278 and 9,830,516

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Solution

The third proportional to 4,571,278 and 9,830,516 is: 21,140,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,571,278 : 9,830,516 = 9,830,516 : x
  2. Step 2: Convert to fraction form
    4,571,278/9,830,516 = 9,830,516/x
  3. Step 3: Cross multiply
    4,571,278x = 9,830,516 × 9,830,516
  4. Step 4: Simplify right side
    4,571,278x = 96,639,044,826,256
  5. Step 5: Solve for x
    x = 96,639,044,826,256/4,571,278
  6. Step 6: Final answer
    x = 21,140,487.37

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.