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Finding the Third Proportional to 12,880,816 and 27,779,391

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Solution

The third proportional to 12,880,816 and 27,779,391 is: 59,910,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,816 : 27,779,391 = 27,779,391 : x
  2. Step 2: Convert to fraction form
    12,880,816/27,779,391 = 27,779,391/x
  3. Step 3: Cross multiply
    12,880,816x = 27,779,391 × 27,779,391
  4. Step 4: Simplify right side
    12,880,816x = 771,694,564,330,881
  5. Step 5: Solve for x
    x = 771,694,564,330,881/12,880,816
  6. Step 6: Final answer
    x = 59,910,378.68

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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.