Home / 66,925,720.85-100,389,140.78-18,406,236.06

Finding the Fourth Proportional to 66,925,720.85, 100,389,140.78 and 18,406,236.06

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Solution

The fourth proportional to 66,925,720.85, 100,389,140.78 and 18,406,236.06 is: 27,609,507.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,925,720.85 : 100,389,140.78 = 18,406,236.06 : x
  2. Step 2: Convert to fraction form
    66,925,720.85/100,389,140.78 = 18,406,236.06/x
  3. Step 3: Cross multiply
    66,925,720.85x = 100,389,140.78 × 18,406,236.06
  4. Step 4: Simplify right side
    66,925,720.85x = 1,847,786,222,965,221.25
  5. Step 5: Solve for x
    x = 1,847,786,222,965,221.25/66,925,720.85
  6. Step 6: Final answer
    x = 27,609,507.97

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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.