Finding the Fourth Proportional to 802,493,252.70, 1,203,739,879.05 and 718,312,998.30
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Solution
The fourth proportional to 802,493,252.70, 1,203,739,879.05 and 718,312,998.30 is: 1,077,469,497.45
Step by Step Solution
- Step 1: Write the proportion equation
802,493,252.70 : 1,203,739,879.05 = 718,312,998.30 : x - Step 2: Convert to fraction form
802,493,252.70/1,203,739,879.05 = 718,312,998.30/x - Step 3: Cross multiply
802,493,252.70x = 1,203,739,879.05 × 718,312,998.30 - Step 4: Simplify right side
802,493,252.70x = 864,662,001,693,684,736 - Step 5: Solve for x
x = 864,662,001,693,684,736/802,493,252.70 - Step 6: Final answer
x = 1,077,469,497.45
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Double scale
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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.