Finding the Fourth Proportional to 415,877,407.28, 573,910,957.56 and 227,717,624.84
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Solution
The fourth proportional to 415,877,407.28, 573,910,957.56 and 227,717,624.84 is: 314,250,396.48
Step by Step Solution
- Step 1: Write the proportion equation
415,877,407.28 : 573,910,957.56 = 227,717,624.84 : x - Step 2: Convert to fraction form
415,877,407.28/573,910,957.56 = 227,717,624.84/x - Step 3: Cross multiply
415,877,407.28x = 573,910,957.56 × 227,717,624.84 - Step 4: Simplify right side
415,877,407.28x = 130,689,640,125,213,232 - Step 5: Solve for x
x = 130,689,640,125,213,232/415,877,407.28 - Step 6: Final answer
x = 314,250,396.48
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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.