Finding the Fourth Proportional to 135,109,124.19, 186,467,858.96 and 75,573,728.91
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Solution
The fourth proportional to 135,109,124.19, 186,467,858.96 and 75,573,728.91 is: 104,301,404.57
Step by Step Solution
- Step 1: Write the proportion equation
135,109,124.19 : 186,467,858.96 = 75,573,728.91 : x - Step 2: Convert to fraction form
135,109,124.19/186,467,858.96 = 75,573,728.91/x - Step 3: Cross multiply
135,109,124.19x = 186,467,858.96 × 75,573,728.91 - Step 4: Simplify right side
135,109,124.19x = 14,092,071,423,093,286 - Step 5: Solve for x
x = 14,092,071,423,093,286/135,109,124.19 - Step 6: Final answer
x = 104,301,404.57
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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.