Finding the Fourth Proportional to 258,863,624.70, 386,877,024.63 and 188,981,015.79
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Solution
The fourth proportional to 258,863,624.70, 386,877,024.63 and 188,981,015.79 is: 282,436,024.70
Step by Step Solution
- Step 1: Write the proportion equation
258,863,624.70 : 386,877,024.63 = 188,981,015.79 : x - Step 2: Convert to fraction form
258,863,624.70/386,877,024.63 = 188,981,015.79/x - Step 3: Cross multiply
258,863,624.70x = 386,877,024.63 × 188,981,015.79 - Step 4: Simplify right side
258,863,624.70x = 73,112,413,100,390,240 - Step 5: Solve for x
x = 73,112,413,100,390,240/258,863,624.70 - Step 6: Final answer
x = 282,436,024.70
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.