Finding the Fourth Proportional to 19,588,381.80, 29,382,572.70 and 8,241,642.60
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Solution
The fourth proportional to 19,588,381.80, 29,382,572.70 and 8,241,642.60 is: 12,362,463.90
Step by Step Solution
- Step 1: Write the proportion equation
19,588,381.80 : 29,382,572.70 = 8,241,642.60 : x - Step 2: Convert to fraction form
19,588,381.80/29,382,572.70 = 8,241,642.60/x - Step 3: Cross multiply
19,588,381.80x = 29,382,572.70 × 8,241,642.60 - Step 4: Simplify right side
19,588,381.80x = 242,160,662,861,917 - Step 5: Solve for x
x = 242,160,662,861,917/19,588,381.80 - Step 6: Final answer
x = 12,362,463.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.