Finding the Fourth Proportional to 1,493,532,138.80, 2,240,298,208.20 and 403,013,457.20
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Solution
The fourth proportional to 1,493,532,138.80, 2,240,298,208.20 and 403,013,457.20 is: 604,520,185.80
Step by Step Solution
- Step 1: Write the proportion equation
1,493,532,138.80 : 2,240,298,208.20 = 403,013,457.20 : x - Step 2: Convert to fraction form
1,493,532,138.80/2,240,298,208.20 = 403,013,457.20/x - Step 3: Cross multiply
1,493,532,138.80x = 2,240,298,208.20 × 403,013,457.20 - Step 4: Simplify right side
1,493,532,138.80x = 902,870,326,045,647,232 - Step 5: Solve for x
x = 902,870,326,045,647,232/1,493,532,138.80 - Step 6: Final answer
x = 604,520,185.80
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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.