Finding the Fourth Proportional to 8,012,430.40, 11,057,138.47 and 4,341,446.32
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Solution
The fourth proportional to 8,012,430.40, 11,057,138.47 and 4,341,446.32 is: 5,991,187.53
Step by Step Solution
- Step 1: Write the proportion equation
8,012,430.40 : 11,057,138.47 = 4,341,446.32 : x - Step 2: Convert to fraction form
8,012,430.40/11,057,138.47 = 4,341,446.32/x - Step 3: Cross multiply
8,012,430.40x = 11,057,138.47 × 4,341,446.32 - Step 4: Simplify right side
8,012,430.40x = 48,003,973,120,311.94 - Step 5: Solve for x
x = 48,003,973,120,311.94/8,012,430.40 - Step 6: Final answer
x = 5,991,187.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.