Finding the Fourth Proportional to 76,149,153.99, 104,981,718.15 and 52,306,053.48
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Solution
The fourth proportional to 76,149,153.99, 104,981,718.15 and 52,306,053.48 is: 72,110,838.75
Step by Step Solution
- Step 1: Write the proportion equation
76,149,153.99 : 104,981,718.15 = 52,306,053.48 : x - Step 2: Convert to fraction form
76,149,153.99/104,981,718.15 = 52,306,053.48/x - Step 3: Cross multiply
76,149,153.99x = 104,981,718.15 × 52,306,053.48 - Step 4: Simplify right side
76,149,153.99x = 5,491,179,363,976,187 - Step 5: Solve for x
x = 5,491,179,363,976,187/76,149,153.99 - Step 6: Final answer
x = 72,110,838.75
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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.