Finding the Fourth Proportional to 10,315,062.60, 15,489,117.90 and 8,202,712.20
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Solution
The fourth proportional to 10,315,062.60, 15,489,117.90 and 8,202,712.20 is: 12,317,208.46
Step by Step Solution
- Step 1: Write the proportion equation
10,315,062.60 : 15,489,117.90 = 8,202,712.20 : x - Step 2: Convert to fraction form
10,315,062.60/15,489,117.90 = 8,202,712.20/x - Step 3: Cross multiply
10,315,062.60x = 15,489,117.90 × 8,202,712.20 - Step 4: Simplify right side
10,315,062.60x = 127,052,776,365,568.39 - Step 5: Solve for x
x = 127,052,776,365,568.39/10,315,062.60 - Step 6: Final answer
x = 12,317,208.46
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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.