Finding the Fourth Proportional to 18,443,613,847.28, 27,667,109,107.58 and 5,178,782,741.70
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Solution
The fourth proportional to 18,443,613,847.28, 27,667,109,107.58 and 5,178,782,741.70 is: 7,768,648,180.64
Step by Step Solution
- Step 1: Write the proportion equation
18,443,613,847.28 : 27,667,109,107.58 = 5,178,782,741.70 : x - Step 2: Convert to fraction form
18,443,613,847.28/27,667,109,107.58 = 5,178,782,741.70/x - Step 3: Cross multiply
18,443,613,847.28x = 27,667,109,107.58 × 5,178,782,741.70 - Step 4: Simplify right side
18,443,613,847.28x = 143,281,947,159,066,198,016 - Step 5: Solve for x
x = 143,281,947,159,066,198,016/18,443,613,847.28 - Step 6: Final answer
x = 7,768,648,180.64
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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.