Finding the Fourth Proportional to 18,578,080.92, 25,637,811.18 and 10,318,141.80
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Solution
The fourth proportional to 18,578,080.92, 25,637,811.18 and 10,318,141.80 is: 14,239,068.74
Step by Step Solution
- Step 1: Write the proportion equation
18,578,080.92 : 25,637,811.18 = 10,318,141.80 : x - Step 2: Convert to fraction form
18,578,080.92/25,637,811.18 = 10,318,141.80/x - Step 3: Cross multiply
18,578,080.92x = 25,637,811.18 × 10,318,141.80 - Step 4: Simplify right side
18,578,080.92x = 264,534,571,196,865.34 - Step 5: Solve for x
x = 264,534,571,196,865.34/18,578,080.92 - Step 6: Final answer
x = 14,239,068.74
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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.