Finding the Fourth Proportional to 158,207,220.04, 218,325,932.12 and 87,647,415.36
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Solution
The fourth proportional to 158,207,220.04, 218,325,932.12 and 87,647,415.36 is: 120,953,415.73
Step by Step Solution
- Step 1: Write the proportion equation
158,207,220.04 : 218,325,932.12 = 87,647,415.36 : x - Step 2: Convert to fraction form
158,207,220.04/218,325,932.12 = 87,647,415.36/x - Step 3: Cross multiply
158,207,220.04x = 218,325,932.12 × 87,647,415.36 - Step 4: Simplify right side
158,207,220.04x = 19,135,703,656,380,804 - Step 5: Solve for x
x = 19,135,703,656,380,804/158,207,220.04 - Step 6: Final answer
x = 120,953,415.73
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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.