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Finding the Third Proportional to 9,955,242 and 21,712,572

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Solution

The third proportional to 9,955,242 and 21,712,572 is: 47,355,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955,242 : 21,712,572 = 21,712,572 : x
  2. Step 2: Convert to fraction form
    9,955,242/21,712,572 = 21,712,572/x
  3. Step 3: Cross multiply
    9,955,242x = 21,712,572 × 21,712,572
  4. Step 4: Simplify right side
    9,955,242x = 471,435,782,855,184
  5. Step 5: Solve for x
    x = 471,435,782,855,184/9,955,242
  6. Step 6: Final answer
    x = 47,355,532.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.