Finding the Fourth Proportional to 15,530,414, 21,430,990.42 and 8,560,707.44
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Solution
The fourth proportional to 15,530,414, 21,430,990.42 and 8,560,707.44 is: 11,813,235.57
Step by Step Solution
- Step 1: Write the proportion equation
15,530,414 : 21,430,990.42 = 8,560,707.44 : x - Step 2: Convert to fraction form
15,530,414/21,430,990.42 = 8,560,707.44/x - Step 3: Cross multiply
15,530,414x = 21,430,990.42 × 8,560,707.44 - Step 4: Simplify right side
15,530,414x = 183,464,439,135,062.72 - Step 5: Solve for x
x = 183,464,439,135,062.72/15,530,414 - Step 6: Final answer
x = 11,813,235.57
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1.5x scale
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.