Finding the Fourth Proportional to 11,478,117.28, 15,840,517.65 and 6,321,477.46
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Solution
The fourth proportional to 11,478,117.28, 15,840,517.65 and 6,321,477.46 is: 8,724,033.12
Step by Step Solution
- Step 1: Write the proportion equation
11,478,117.28 : 15,840,517.65 = 6,321,477.46 : x - Step 2: Convert to fraction form
11,478,117.28/15,840,517.65 = 6,321,477.46/x - Step 3: Cross multiply
11,478,117.28x = 15,840,517.65 × 6,321,477.46 - Step 4: Simplify right side
11,478,117.28x = 100,135,475,279,207.17 - Step 5: Solve for x
x = 100,135,475,279,207.17/11,478,117.28 - Step 6: Final answer
x = 8,724,033.12
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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.