Finding the Fourth Proportional to 7,472,015.80, 11,208,023.70 and 6,798,857.20
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Solution
The fourth proportional to 7,472,015.80, 11,208,023.70 and 6,798,857.20 is: 10,198,285.80
Step by Step Solution
- Step 1: Write the proportion equation
7,472,015.80 : 11,208,023.70 = 6,798,857.20 : x - Step 2: Convert to fraction form
7,472,015.80/11,208,023.70 = 6,798,857.20/x - Step 3: Cross multiply
7,472,015.80x = 11,208,023.70 × 6,798,857.20 - Step 4: Simplify right side
7,472,015.80x = 76,201,752,630,515.64 - Step 5: Solve for x
x = 76,201,752,630,515.64/7,472,015.80 - Step 6: Final answer
x = 10,198,285.80
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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.