Finding the Fourth Proportional to 159,836,412.42, 220,573,438.20 and 86,497,554.42
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Solution
The fourth proportional to 159,836,412.42, 220,573,438.20 and 86,497,554.42 is: 119,366,186.25
Step by Step Solution
- Step 1: Write the proportion equation
159,836,412.42 : 220,573,438.20 = 86,497,554.42 : x - Step 2: Convert to fraction form
159,836,412.42/220,573,438.20 = 86,497,554.42/x - Step 3: Cross multiply
159,836,412.42x = 220,573,438.20 × 86,497,554.42 - Step 4: Simplify right side
159,836,412.42x = 19,079,062,974,311,008 - Step 5: Solve for x
x = 19,079,062,974,311,008/159,836,412.42 - Step 6: Final answer
x = 119,366,186.25
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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.