Finding the Fourth Proportional to 153,760,528.96, 212,189,392.81 and 86,793,583.40
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Solution
The fourth proportional to 153,760,528.96, 212,189,392.81 and 86,793,583.40 is: 119,775,067.67
Step by Step Solution
- Step 1: Write the proportion equation
153,760,528.96 : 212,189,392.81 = 86,793,583.40 : x - Step 2: Convert to fraction form
153,760,528.96/212,189,392.81 = 86,793,583.40/x - Step 3: Cross multiply
153,760,528.96x = 212,189,392.81 × 86,793,583.40 - Step 4: Simplify right side
153,760,528.96x = 18,416,677,760,452,340 - Step 5: Solve for x
x = 18,416,677,760,452,340/153,760,528.96 - Step 6: Final answer
x = 119,775,067.67
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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.