Finding the Fourth Proportional to 157,780,938.08, 217,733,517.82 and 88,166,891.00
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Solution
The fourth proportional to 157,780,938.08, 217,733,517.82 and 88,166,891.00 is: 121,667,975.65
Step by Step Solution
- Step 1: Write the proportion equation
157,780,938.08 : 217,733,517.82 = 88,166,891.00 : x - Step 2: Convert to fraction form
157,780,938.08/217,733,517.82 = 88,166,891.00/x - Step 3: Cross multiply
157,780,938.08x = 217,733,517.82 × 88,166,891.00 - Step 4: Simplify right side
157,780,938.08x = 19,196,887,333,337,040 - Step 5: Solve for x
x = 19,196,887,333,337,040/157,780,938.08 - Step 6: Final answer
x = 121,667,975.65
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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.