Finding the Fourth Proportional to 6,515,098.29, 8,991,914.92 and 3,615,420.60
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Solution
The fourth proportional to 6,515,098.29, 8,991,914.92 and 3,615,420.60 is: 4,989,879.35
Step by Step Solution
- Step 1: Write the proportion equation
6,515,098.29 : 8,991,914.92 = 3,615,420.60 : x - Step 2: Convert to fraction form
6,515,098.29/8,991,914.92 = 3,615,420.60/x - Step 3: Cross multiply
6,515,098.29x = 8,991,914.92 × 3,615,420.60 - Step 4: Simplify right side
6,515,098.29x = 32,509,554,435,215.35 - Step 5: Solve for x
x = 32,509,554,435,215.35/6,515,098.29 - Step 6: Final answer
x = 4,989,879.35
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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.