Finding the Fourth Proportional to 7,461,766.40, 11,192,649.60 and 2,413,587.20
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Solution
The fourth proportional to 7,461,766.40, 11,192,649.60 and 2,413,587.20 is: 3,620,380.80
Step by Step Solution
- Step 1: Write the proportion equation
7,461,766.40 : 11,192,649.60 = 2,413,587.20 : x - Step 2: Convert to fraction form
7,461,766.40/11,192,649.60 = 2,413,587.20/x - Step 3: Cross multiply
7,461,766.40x = 11,192,649.60 × 2,413,587.20 - Step 4: Simplify right side
7,461,766.40x = 27,014,435,808,645.12 - Step 5: Solve for x
x = 27,014,435,808,645.12/7,461,766.40 - Step 6: Final answer
x = 3,620,380.80
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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.