Finding the Fourth Proportional to 154,095,645.66, 212,651,939.84 and 84,479,531.87
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Solution
The fourth proportional to 154,095,645.66, 212,651,939.84 and 84,479,531.87 is: 116,581,725.92
Step by Step Solution
- Step 1: Write the proportion equation
154,095,645.66 : 212,651,939.84 = 84,479,531.87 : x - Step 2: Convert to fraction form
154,095,645.66/212,651,939.84 = 84,479,531.87/x - Step 3: Cross multiply
154,095,645.66x = 212,651,939.84 × 84,479,531.87 - Step 4: Simplify right side
154,095,645.66x = 17,964,736,327,444,944 - Step 5: Solve for x
x = 17,964,736,327,444,944/154,095,645.66 - Step 6: Final answer
x = 116,581,725.92
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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.