Finding the Fourth Proportional to 7,477,712.40, 11,216,568.60 and 6,149,109.90
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Solution
The fourth proportional to 7,477,712.40, 11,216,568.60 and 6,149,109.90 is: 9,223,664.85
Step by Step Solution
- Step 1: Write the proportion equation
7,477,712.40 : 11,216,568.60 = 6,149,109.90 : x - Step 2: Convert to fraction form
7,477,712.40/11,216,568.60 = 6,149,109.90/x - Step 3: Cross multiply
7,477,712.40x = 11,216,568.60 × 6,149,109.90 - Step 4: Simplify right side
7,477,712.40x = 68,971,913,022,289.14 - Step 5: Solve for x
x = 68,971,913,022,289.14/7,477,712.40 - Step 6: Final answer
x = 9,223,664.85
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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.