Finding the Fourth Proportional to 1,444,617,385.20, 1,993,694,943.42 and 818,197,249.68
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Solution
The fourth proportional to 1,444,617,385.20, 1,993,694,943.42 and 818,197,249.68 is: 1,129,181,841.59
Step by Step Solution
- Step 1: Write the proportion equation
1,444,617,385.20 : 1,993,694,943.42 = 818,197,249.68 : x - Step 2: Convert to fraction form
1,444,617,385.20/1,993,694,943.42 = 818,197,249.68/x - Step 3: Cross multiply
1,444,617,385.20x = 1,993,694,943.42 × 818,197,249.68 - Step 4: Simplify right side
1,444,617,385.20x = 1,631,235,719,407,167,232 - Step 5: Solve for x
x = 1,631,235,719,407,167,232/1,444,617,385.20 - Step 6: Final answer
x = 1,129,181,841.59
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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.