Finding the Fourth Proportional to 12,426,663.43, 18,631,329.24 and 5,506,378.97
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Solution
The fourth proportional to 12,426,663.43, 18,631,329.24 and 5,506,378.97 is: 8,255,728.50
Step by Step Solution
- Step 1: Write the proportion equation
12,426,663.43 : 18,631,329.24 = 5,506,378.97 : x - Step 2: Convert to fraction form
12,426,663.43/18,631,329.24 = 5,506,378.97/x - Step 3: Cross multiply
12,426,663.43x = 18,631,329.24 × 5,506,378.97 - Step 4: Simplify right side
12,426,663.43x = 102,591,159,406,578.91 - Step 5: Solve for x
x = 102,591,159,406,578.91/12,426,663.43 - Step 6: Final answer
x = 8,255,728.50
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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.