Finding the Fourth Proportional to 10,516,276.20, 15,774,414.30 and 5,414,442.60
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Solution
The fourth proportional to 10,516,276.20, 15,774,414.30 and 5,414,442.60 is: 8,121,663.90
Step by Step Solution
- Step 1: Write the proportion equation
10,516,276.20 : 15,774,414.30 = 5,414,442.60 : x - Step 2: Convert to fraction form
10,516,276.20/15,774,414.30 = 5,414,442.60/x - Step 3: Cross multiply
10,516,276.20x = 15,774,414.30 × 5,414,442.60 - Step 4: Simplify right side
10,516,276.20x = 85,409,660,775,969.17 - Step 5: Solve for x
x = 85,409,660,775,969.17/10,516,276.20 - Step 6: Final answer
x = 8,121,663.90
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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.