Finding the Fourth Proportional to 289,325,314.48, 399,221,604.36 and 170,348,169.19
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Solution
The fourth proportional to 289,325,314.48, 399,221,604.36 and 170,348,169.19 is: 235,052,606.88
Step by Step Solution
- Step 1: Write the proportion equation
289,325,314.48 : 399,221,604.36 = 170,348,169.19 : x - Step 2: Convert to fraction form
289,325,314.48/399,221,604.36 = 170,348,169.19/x - Step 3: Cross multiply
289,325,314.48x = 399,221,604.36 × 170,348,169.19 - Step 4: Simplify right side
289,325,314.48x = 68,006,669,403,820,520 - Step 5: Solve for x
x = 68,006,669,403,820,520/289,325,314.48 - Step 6: Final answer
x = 235,052,606.88
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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.