Finding the Fourth Proportional to 657,479,512.88, 986,195,350.44 and 197,405,724.80
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Solution
The fourth proportional to 657,479,512.88, 986,195,350.44 and 197,405,724.80 is: 296,101,405.65
Step by Step Solution
- Step 1: Write the proportion equation
657,479,512.88 : 986,195,350.44 = 197,405,724.80 : x - Step 2: Convert to fraction form
657,479,512.88/986,195,350.44 = 197,405,724.80/x - Step 3: Cross multiply
657,479,512.88x = 986,195,350.44 × 197,405,724.80 - Step 4: Simplify right side
657,479,512.88x = 194,680,607,947,998,208 - Step 5: Solve for x
x = 194,680,607,947,998,208/657,479,512.88 - Step 6: Final answer
x = 296,101,405.65
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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.