Finding the Fourth Proportional to 21,347,549.46, 29,459,635.61 and 11,558,000.43
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Solution
The fourth proportional to 21,347,549.46, 29,459,635.61 and 11,558,000.43 is: 15,950,049.99
Step by Step Solution
- Step 1: Write the proportion equation
21,347,549.46 : 29,459,635.61 = 11,558,000.43 : x - Step 2: Convert to fraction form
21,347,549.46/29,459,635.61 = 11,558,000.43/x - Step 3: Cross multiply
21,347,549.46x = 29,459,635.61 × 11,558,000.43 - Step 4: Simplify right side
21,347,549.46x = 340,494,480,990,233.31 - Step 5: Solve for x
x = 340,494,480,990,233.31/21,347,549.46 - Step 6: Final answer
x = 15,950,049.99
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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.