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Finding the Third Proportional to 12,938,974,992 and 18,490,132,440

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Solution

The third proportional to 12,938,974,992 and 18,490,132,440 is: 26,422,881,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,974,992 : 18,490,132,440 = 18,490,132,440 : x
  2. Step 2: Convert to fraction form
    12,938,974,992/18,490,132,440 = 18,490,132,440/x
  3. Step 3: Cross multiply
    12,938,974,992x = 18,490,132,440 × 18,490,132,440
  4. Step 4: Simplify right side
    12,938,974,992x = 341,884,997,648,740,384,768
  5. Step 5: Solve for x
    x = 341,884,997,648,740,384,768/12,938,974,992
  6. Step 6: Final answer
    x = 26,422,881,090.67

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.