Finding the Fourth Proportional to 1,229,253,976.08, 1,695,298,414.30 and 871,313,765.94
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Solution
The fourth proportional to 1,229,253,976.08, 1,695,298,414.30 and 871,313,765.94 is: 1,201,653,095.70
Step by Step Solution
- Step 1: Write the proportion equation
1,229,253,976.08 : 1,695,298,414.30 = 871,313,765.94 : x - Step 2: Convert to fraction form
1,229,253,976.08/1,695,298,414.30 = 871,313,765.94/x - Step 3: Cross multiply
1,229,253,976.08x = 1,695,298,414.30 × 871,313,765.94 - Step 4: Simplify right side
1,229,253,976.08x = 1,477,136,845,753,665,024 - Step 5: Solve for x
x = 1,477,136,845,753,665,024/1,229,253,976.08 - Step 6: Final answer
x = 1,201,653,095.70
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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.