Finding the Fourth Proportional to 55,324,260.10, 76,354,173.76 and 31,487,682.81
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Solution
The fourth proportional to 55,324,260.10, 76,354,173.76 and 31,487,682.81 is: 43,456,812.62
Step by Step Solution
- Step 1: Write the proportion equation
55,324,260.10 : 76,354,173.76 = 31,487,682.81 : x - Step 2: Convert to fraction form
55,324,260.10/76,354,173.76 = 31,487,682.81/x - Step 3: Cross multiply
55,324,260.10x = 76,354,173.76 × 31,487,682.81 - Step 4: Simplify right side
55,324,260.10x = 2,404,216,004,500,142 - Step 5: Solve for x
x = 2,404,216,004,500,142/55,324,260.10 - Step 6: Final answer
x = 43,456,812.62
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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.