Finding the Fourth Proportional to 885,185,940.70, 1,327,778,911.05 and 862,511,124.70
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Solution
The fourth proportional to 885,185,940.70, 1,327,778,911.05 and 862,511,124.70 is: 1,293,766,687.05
Step by Step Solution
- Step 1: Write the proportion equation
885,185,940.70 : 1,327,778,911.05 = 862,511,124.70 : x - Step 2: Convert to fraction form
885,185,940.70/1,327,778,911.05 = 862,511,124.70/x - Step 3: Cross multiply
885,185,940.70x = 1,327,778,911.05 × 862,511,124.70 - Step 4: Simplify right side
885,185,940.70x = 1,145,224,081,922,676,736 - Step 5: Solve for x
x = 1,145,224,081,922,676,736/885,185,940.70 - Step 6: Final answer
x = 1,293,766,687.05
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Similar ratio
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1.5x scale
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.