Finding the Fourth Proportional to 802,493,674.20, 1,203,740,511.30 and 718,313,419.80
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Solution
The fourth proportional to 802,493,674.20, 1,203,740,511.30 and 718,313,419.80 is: 1,077,470,129.70
Step by Step Solution
- Step 1: Write the proportion equation
802,493,674.20 : 1,203,740,511.30 = 718,313,419.80 : x - Step 2: Convert to fraction form
802,493,674.20/1,203,740,511.30 = 718,313,419.80/x - Step 3: Cross multiply
802,493,674.20x = 1,203,740,511.30 × 718,313,419.80 - Step 4: Simplify right side
802,493,674.20x = 864,662,963,223,703,424 - Step 5: Solve for x
x = 864,662,963,223,703,424/802,493,674.20 - Step 6: Final answer
x = 1,077,470,129.70
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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.