Finding the Fourth Proportional to 202,752,080.80, 304,128,121.20 and 121,931,447.20
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Solution
The fourth proportional to 202,752,080.80, 304,128,121.20 and 121,931,447.20 is: 182,897,170.80
Step by Step Solution
- Step 1: Write the proportion equation
202,752,080.80 : 304,128,121.20 = 121,931,447.20 : x - Step 2: Convert to fraction form
202,752,080.80/304,128,121.20 = 121,931,447.20/x - Step 3: Cross multiply
202,752,080.80x = 304,128,121.20 × 121,931,447.20 - Step 4: Simplify right side
202,752,080.80x = 37,082,781,952,133,000 - Step 5: Solve for x
x = 37,082,781,952,133,000/202,752,080.80 - Step 6: Final answer
x = 182,897,170.80
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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.