Finding the Fourth Proportional to 55,324,260.86, 76,354,174.80 and 31,487,683.56
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Solution
The fourth proportional to 55,324,260.86, 76,354,174.80 and 31,487,683.56 is: 43,456,813.66
Step by Step Solution
- Step 1: Write the proportion equation
55,324,260.86 : 76,354,174.80 = 31,487,683.56 : x - Step 2: Convert to fraction form
55,324,260.86/76,354,174.80 = 31,487,683.56/x - Step 3: Cross multiply
55,324,260.86x = 76,354,174.80 × 31,487,683.56 - Step 4: Simplify right side
55,324,260.86x = 2,404,216,094,587,326 - Step 5: Solve for x
x = 2,404,216,094,587,326/55,324,260.86 - Step 6: Final answer
x = 43,456,813.66
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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.