Finding the Fourth Proportional to 7,477,079.68, 11,215,709.43 and 2,085,401.76
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Solution
The fourth proportional to 7,477,079.68, 11,215,709.43 and 2,085,401.76 is: 3,128,127.72
Step by Step Solution
- Step 1: Write the proportion equation
7,477,079.68 : 11,215,709.43 = 2,085,401.76 : x - Step 2: Convert to fraction form
7,477,079.68/11,215,709.43 = 2,085,401.76/x - Step 3: Cross multiply
7,477,079.68x = 11,215,709.43 × 2,085,401.76 - Step 4: Simplify right side
7,477,079.68x = 23,389,260,184,970.60 - Step 5: Solve for x
x = 23,389,260,184,970.60/7,477,079.68 - Step 6: Final answer
x = 3,128,127.72
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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.