Finding the Fourth Proportional to 321,062,394.81, 443,058,569.16 and 188,911,950.70
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Solution
The fourth proportional to 321,062,394.81, 443,058,569.16 and 188,911,950.70 is: 260,694,058.00
Step by Step Solution
- Step 1: Write the proportion equation
321,062,394.81 : 443,058,569.16 = 188,911,950.70 : x - Step 2: Convert to fraction form
321,062,394.81/443,058,569.16 = 188,911,950.70/x - Step 3: Cross multiply
321,062,394.81x = 443,058,569.16 × 188,911,950.70 - Step 4: Simplify right side
321,062,394.81x = 83,699,058,574,366,464 - Step 5: Solve for x
x = 83,699,058,574,366,464/321,062,394.81 - Step 6: Final answer
x = 260,694,058.00
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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.