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Finding the Third Proportional to 30,155,039,397 and 66,291,977,718

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Solution

The third proportional to 30,155,039,397 and 66,291,977,718 is: 145,734,391,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155,039,397 : 66,291,977,718 = 66,291,977,718 : x
  2. Step 2: Convert to fraction form
    30,155,039,397/66,291,977,718 = 66,291,977,718/x
  3. Step 3: Cross multiply
    30,155,039,397x = 66,291,977,718 × 66,291,977,718
  4. Step 4: Simplify right side
    30,155,039,397x = 4,394,626,309,763,808,362,496
  5. Step 5: Solve for x
    x = 4,394,626,309,763,808,362,496/30,155,039,397
  6. Step 6: Final answer
    x = 145,734,391,254.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.