Finding the Fourth Proportional to 154,858,556.07, 213,709,212.72 and 84,298,716.74
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Solution
The fourth proportional to 154,858,556.07, 213,709,212.72 and 84,298,716.74 is: 116,334,627.18
Step by Step Solution
- Step 1: Write the proportion equation
154,858,556.07 : 213,709,212.72 = 84,298,716.74 : x - Step 2: Convert to fraction form
154,858,556.07/213,709,212.72 = 84,298,716.74/x - Step 3: Cross multiply
154,858,556.07x = 213,709,212.72 × 84,298,716.74 - Step 4: Simplify right side
154,858,556.07x = 18,015,412,386,743,140 - Step 5: Solve for x
x = 18,015,412,386,743,140/154,858,556.07 - Step 6: Final answer
x = 116,334,627.18
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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.