Finding the Fourth Proportional to 10,528,489.70, 15,804,544.35 and 8,142,910.10
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Solution
The fourth proportional to 10,528,489.70, 15,804,544.35 and 8,142,910.10 is: 12,223,499.05
Step by Step Solution
- Step 1: Write the proportion equation
10,528,489.70 : 15,804,544.35 = 8,142,910.10 : x - Step 2: Convert to fraction form
10,528,489.70/15,804,544.35 = 8,142,910.10/x - Step 3: Cross multiply
10,528,489.70x = 15,804,544.35 × 8,142,910.10 - Step 4: Simplify right side
10,528,489.70x = 128,694,983,813,512.92 - Step 5: Solve for x
x = 128,694,983,813,512.92/10,528,489.70 - Step 6: Final answer
x = 12,223,499.05
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1.5x scale
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.