Finding the Fourth Proportional to 18,432,730.80, 27,649,096.20 and 5,655,207.60
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Solution
The fourth proportional to 18,432,730.80, 27,649,096.20 and 5,655,207.60 is: 8,482,811.40
Step by Step Solution
- Step 1: Write the proportion equation
18,432,730.80 : 27,649,096.20 = 5,655,207.60 : x - Step 2: Convert to fraction form
18,432,730.80/27,649,096.20 = 5,655,207.60/x - Step 3: Cross multiply
18,432,730.80x = 27,649,096.20 × 5,655,207.60 - Step 4: Simplify right side
18,432,730.80x = 156,361,378,963,371.09 - Step 5: Solve for x
x = 156,361,378,963,371.09/18,432,730.80 - Step 6: Final answer
x = 8,482,811.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.