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Finding the Fourth Proportional to 111,327,999.40, 166,991,999.10 and 111,327,999.40

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Solution

The fourth proportional to 111,327,999.40, 166,991,999.10 and 111,327,999.40 is: 166,991,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,327,999.40 : 166,991,999.10 = 111,327,999.40 : x
  2. Step 2: Convert to fraction form
    111,327,999.40/166,991,999.10 = 111,327,999.40/x
  3. Step 3: Cross multiply
    111,327,999.40x = 166,991,999.10 × 111,327,999.40
  4. Step 4: Simplify right side
    111,327,999.40x = 18,590,885,175,609,600
  5. Step 5: Solve for x
    x = 18,590,885,175,609,600/111,327,999.40
  6. Step 6: Final answer
    x = 166,991,999.10

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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.