Finding the Fourth Proportional to 16,287,324.55, 22,478,501.97 and 9,411,806.61
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Solution
The fourth proportional to 16,287,324.55, 22,478,501.97 and 9,411,806.61 is: 12,989,445.43
Step by Step Solution
- Step 1: Write the proportion equation
16,287,324.55 : 22,478,501.97 = 9,411,806.61 : x - Step 2: Convert to fraction form
16,287,324.55/22,478,501.97 = 9,411,806.61/x - Step 3: Cross multiply
16,287,324.55x = 22,478,501.97 × 9,411,806.61 - Step 4: Simplify right side
16,287,324.55x = 211,563,313,424,144 - Step 5: Solve for x
x = 211,563,313,424,144/16,287,324.55 - Step 6: Final answer
x = 12,989,445.43
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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.