Finding the Fourth Proportional to 154,063,251.56, 212,483,318.60 and 135,438,569.60
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Solution
The fourth proportional to 154,063,251.56, 212,483,318.60 and 135,438,569.60 is: 186,796,244.03
Step by Step Solution
- Step 1: Write the proportion equation
154,063,251.56 : 212,483,318.60 = 135,438,569.60 : x - Step 2: Convert to fraction form
154,063,251.56/212,483,318.60 = 135,438,569.60/x - Step 3: Cross multiply
154,063,251.56x = 212,483,318.60 × 135,438,569.60 - Step 4: Simplify right side
154,063,251.56x = 28,778,436,735,045,072 - Step 5: Solve for x
x = 28,778,436,735,045,072/154,063,251.56 - Step 6: Final answer
x = 186,796,244.03
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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.