Finding the Fourth Proportional to 247,120,972.68, 341,029,514.86 and 135,619,035.42
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Solution
The fourth proportional to 247,120,972.68, 341,029,514.86 and 135,619,035.42 is: 187,155,680.69
Step by Step Solution
- Step 1: Write the proportion equation
247,120,972.68 : 341,029,514.86 = 135,619,035.42 : x - Step 2: Convert to fraction form
247,120,972.68/341,029,514.86 = 135,619,035.42/x - Step 3: Cross multiply
247,120,972.68x = 341,029,514.86 × 135,619,035.42 - Step 4: Simplify right side
247,120,972.68x = 46,250,093,855,063,752 - Step 5: Solve for x
x = 46,250,093,855,063,752/247,120,972.68 - Step 6: Final answer
x = 187,155,680.69
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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.