Finding the Fourth Proportional to 21,490,635.24, 29,659,168.98 and 16,048,679.40
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Solution
The fourth proportional to 21,490,635.24, 29,659,168.98 and 16,048,679.40 is: 22,148,740.09
Step by Step Solution
- Step 1: Write the proportion equation
21,490,635.24 : 29,659,168.98 = 16,048,679.40 : x - Step 2: Convert to fraction form
21,490,635.24/29,659,168.98 = 16,048,679.40/x - Step 3: Cross multiply
21,490,635.24x = 29,659,168.98 × 16,048,679.40 - Step 4: Simplify right side
21,490,635.24x = 475,990,494,230,445 - Step 5: Solve for x
x = 475,990,494,230,445/21,490,635.24 - Step 6: Final answer
x = 22,148,740.09
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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.