Finding the Fourth Proportional to 128,646,569.01, 192,981,417.27 and 36,531,211.59
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Solution
The fourth proportional to 128,646,569.01, 192,981,417.27 and 36,531,211.59 is: 54,800,101.09
Step by Step Solution
- Step 1: Write the proportion equation
128,646,569.01 : 192,981,417.27 = 36,531,211.59 : x - Step 2: Convert to fraction form
128,646,569.01/192,981,417.27 = 36,531,211.59/x - Step 3: Cross multiply
128,646,569.01x = 192,981,417.27 × 36,531,211.59 - Step 4: Simplify right side
128,646,569.01x = 7,049,844,987,228,451 - Step 5: Solve for x
x = 7,049,844,987,228,451/128,646,569.01 - Step 6: Final answer
x = 54,800,101.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.