Finding the Fourth Proportional to 7,477,440.78, 11,216,152.52 and 2,685,135.12
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Solution
The fourth proportional to 7,477,440.78, 11,216,152.52 and 2,685,135.12 is: 4,027,699.57
Step by Step Solution
- Step 1: Write the proportion equation
7,477,440.78 : 11,216,152.52 = 2,685,135.12 : x - Step 2: Convert to fraction form
7,477,440.78/11,216,152.52 = 2,685,135.12/x - Step 3: Cross multiply
7,477,440.78x = 11,216,152.52 × 2,685,135.12 - Step 4: Simplify right side
7,477,440.78x = 30,116,884,997,311.51 - Step 5: Solve for x
x = 30,116,884,997,311.51/7,477,440.78 - Step 6: Final answer
x = 4,027,699.57
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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.