Finding the Fourth Proportional to 4,290,714.18, 6,435,971.64 and 2,160,226.26
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Solution
The fourth proportional to 4,290,714.18, 6,435,971.64 and 2,160,226.26 is: 3,240,289.23
Step by Step Solution
- Step 1: Write the proportion equation
4,290,714.18 : 6,435,971.64 = 2,160,226.26 : x - Step 2: Convert to fraction form
4,290,714.18/6,435,971.64 = 2,160,226.26/x - Step 3: Cross multiply
4,290,714.18x = 6,435,971.64 × 2,160,226.26 - Step 4: Simplify right side
4,290,714.18x = 13,903,154,945,343.26 - Step 5: Solve for x
x = 13,903,154,945,343.26/4,290,714.18 - Step 6: Final answer
x = 3,240,289.23
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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.