Finding the Fourth Proportional to 16,131,463.42, 22,261,139.21 and 8,789,356.90
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Solution
The fourth proportional to 16,131,463.42, 22,261,139.21 and 8,789,356.90 is: 12,129,159.79
Step by Step Solution
- Step 1: Write the proportion equation
16,131,463.42 : 22,261,139.21 = 8,789,356.90 : x - Step 2: Convert to fraction form
16,131,463.42/22,261,139.21 = 8,789,356.90/x - Step 3: Cross multiply
16,131,463.42x = 22,261,139.21 × 8,789,356.90 - Step 4: Simplify right side
16,131,463.42x = 195,661,097,517,274.06 - Step 5: Solve for x
x = 195,661,097,517,274.06/16,131,463.42 - Step 6: Final answer
x = 12,129,159.79
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1.5x scale
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.