Finding the Fourth Proportional to 154,329,447.96, 212,971,965.60 and 83,763,544.08
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Solution
The fourth proportional to 154,329,447.96, 212,971,965.60 and 83,763,544.08 is: 115,592,240.26
Step by Step Solution
- Step 1: Write the proportion equation
154,329,447.96 : 212,971,965.60 = 83,763,544.08 : x - Step 2: Convert to fraction form
154,329,447.96/212,971,965.60 = 83,763,544.08/x - Step 3: Cross multiply
154,329,447.96x = 212,971,965.60 × 83,763,544.08 - Step 4: Simplify right side
154,329,447.96x = 17,839,286,628,339,842 - Step 5: Solve for x
x = 17,839,286,628,339,842/154,329,447.96 - Step 6: Final answer
x = 115,592,240.26
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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.