Finding the Fourth Proportional to 5,820,435.36, 8,685,132.66 and 5,215,231.44
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Solution
The fourth proportional to 5,820,435.36, 8,685,132.66 and 5,215,231.44 is: 7,782,059.95
Step by Step Solution
- Step 1: Write the proportion equation
5,820,435.36 : 8,685,132.66 = 5,215,231.44 : x - Step 2: Convert to fraction form
5,820,435.36/8,685,132.66 = 5,215,231.44/x - Step 3: Cross multiply
5,820,435.36x = 8,685,132.66 × 5,215,231.44 - Step 4: Simplify right side
5,820,435.36x = 45,294,976,909,002.84 - Step 5: Solve for x
x = 45,294,976,909,002.84/5,820,435.36 - Step 6: Final answer
x = 7,782,059.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.