Finding the Fourth Proportional to 4,217,279,293.45, 5,819,719,421.85 and 2,311,975,620.68
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Solution
The fourth proportional to 4,217,279,293.45, 5,819,719,421.85 and 2,311,975,620.68 is: 3,190,457,279.75
Step by Step Solution
- Step 1: Write the proportion equation
4,217,279,293.45 : 5,819,719,421.85 = 2,311,975,620.68 : x - Step 2: Convert to fraction form
4,217,279,293.45/5,819,719,421.85 = 2,311,975,620.68/x - Step 3: Cross multiply
4,217,279,293.45x = 5,819,719,421.85 × 2,311,975,620.68 - Step 4: Simplify right side
4,217,279,293.45x = 13,455,049,422,515,103,744 - Step 5: Solve for x
x = 13,455,049,422,515,103,744/4,217,279,293.45 - Step 6: Final answer
x = 3,190,457,279.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.