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Finding the Third Proportional to 4,457,439 and 9,769,320

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Solution

The third proportional to 4,457,439 and 9,769,320 is: 21,411,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457,439 : 9,769,320 = 9,769,320 : x
  2. Step 2: Convert to fraction form
    4,457,439/9,769,320 = 9,769,320/x
  3. Step 3: Cross multiply
    4,457,439x = 9,769,320 × 9,769,320
  4. Step 4: Simplify right side
    4,457,439x = 95,439,613,262,400
  5. Step 5: Solve for x
    x = 95,439,613,262,400/4,457,439
  6. Step 6: Final answer
    x = 21,411,311.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.