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Finding the Fourth Proportional to 82,512,443,999.40, 123,768,665,999.10 and 82,512,443,999.40

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Solution

The fourth proportional to 82,512,443,999.40, 123,768,665,999.10 and 82,512,443,999.40 is: 123,768,665,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,512,443,999.40 : 123,768,665,999.10 = 82,512,443,999.40 : x
  2. Step 2: Convert to fraction form
    82,512,443,999.40/123,768,665,999.10 = 82,512,443,999.40/x
  3. Step 3: Cross multiply
    82,512,443,999.40x = 123,768,665,999.10 × 82,512,443,999.40
  4. Step 4: Simplify right side
    82,512,443,999.40x = 10,212,455,122,131,180,584,960
  5. Step 5: Solve for x
    x = 10,212,455,122,131,180,584,960/82,512,443,999.40
  6. Step 6: Final answer
    x = 123,768,665,999.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.