Finding the Fourth Proportional to 3,921,319.08, 5,411,927.77 and 2,202,439.55
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Solution
The fourth proportional to 3,921,319.08, 5,411,927.77 and 2,202,439.55 is: 3,039,651.58
Step by Step Solution
- Step 1: Write the proportion equation
3,921,319.08 : 5,411,927.77 = 2,202,439.55 : x - Step 2: Convert to fraction form
3,921,319.08/5,411,927.77 = 2,202,439.55/x - Step 3: Cross multiply
3,921,319.08x = 5,411,927.77 × 2,202,439.55 - Step 4: Simplify right side
3,921,319.08x = 11,919,443,742,214.29 - Step 5: Solve for x
x = 11,919,443,742,214.29/3,921,319.08 - Step 6: Final answer
x = 3,039,651.58
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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.