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Finding the Third Proportional to 1,778,021,160 and 3,953,579,760

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Solution

The third proportional to 1,778,021,160 and 3,953,579,760 is: 8,791,117,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,021,160 : 3,953,579,760 = 3,953,579,760 : x
  2. Step 2: Convert to fraction form
    1,778,021,160/3,953,579,760 = 3,953,579,760/x
  3. Step 3: Cross multiply
    1,778,021,160x = 3,953,579,760 × 3,953,579,760
  4. Step 4: Simplify right side
    1,778,021,160x = 15,630,792,918,681,657,344
  5. Step 5: Solve for x
    x = 15,630,792,918,681,657,344/1,778,021,160
  6. Step 6: Final answer
    x = 8,791,117,490.80

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.