Finding the Fourth Proportional to 143,737,519.20, 215,606,278.80 and 97,821,016.80
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Solution
The fourth proportional to 143,737,519.20, 215,606,278.80 and 97,821,016.80 is: 146,731,525.20
Step by Step Solution
- Step 1: Write the proportion equation
143,737,519.20 : 215,606,278.80 = 97,821,016.80 : x - Step 2: Convert to fraction form
143,737,519.20/215,606,278.80 = 97,821,016.80/x - Step 3: Cross multiply
143,737,519.20x = 215,606,278.80 × 97,821,016.80 - Step 4: Simplify right side
143,737,519.20x = 21,090,825,420,680,284 - Step 5: Solve for x
x = 21,090,825,420,680,284/143,737,519.20 - Step 6: Final answer
x = 146,731,525.20
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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.