Finding the Fourth Proportional to 16,915,857.99, 23,343,906.55 and 9,180,900.31
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Solution
The fourth proportional to 16,915,857.99, 23,343,906.55 and 9,180,900.31 is: 12,669,654.66
Step by Step Solution
- Step 1: Write the proportion equation
16,915,857.99 : 23,343,906.55 = 9,180,900.31 : x - Step 2: Convert to fraction form
16,915,857.99/23,343,906.55 = 9,180,900.31/x - Step 3: Cross multiply
16,915,857.99x = 23,343,906.55 × 9,180,900.31 - Step 4: Simplify right side
16,915,857.99x = 214,318,078,962,818.03 - Step 5: Solve for x
x = 214,318,078,962,818.03/16,915,857.99 - Step 6: Final answer
x = 12,669,654.66
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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.