Finding the Fourth Proportional to 1,283,123,552.46, 1,770,407,012.17 and 726,206,583.12
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Solution
The fourth proportional to 1,283,123,552.46, 1,770,407,012.17 and 726,206,583.12 is: 1,001,993,319.02
Step by Step Solution
- Step 1: Write the proportion equation
1,283,123,552.46 : 1,770,407,012.17 = 726,206,583.12 : x - Step 2: Convert to fraction form
1,283,123,552.46/1,770,407,012.17 = 726,206,583.12/x - Step 3: Cross multiply
1,283,123,552.46x = 1,770,407,012.17 × 726,206,583.12 - Step 4: Simplify right side
1,283,123,552.46x = 1,285,681,227,039,664,128 - Step 5: Solve for x
x = 1,285,681,227,039,664,128/1,283,123,552.46 - Step 6: Final answer
x = 1,001,993,319.02
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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.