Finding the Fourth Proportional to 37,446,987.92, 51,672,367.74 and 20,699,465.09
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Solution
The fourth proportional to 37,446,987.92, 51,672,367.74 and 20,699,465.09 is: 28,562,787.87
Step by Step Solution
- Step 1: Write the proportion equation
37,446,987.92 : 51,672,367.74 = 20,699,465.09 : x - Step 2: Convert to fraction form
37,446,987.92/51,672,367.74 = 20,699,465.09/x - Step 3: Cross multiply
37,446,987.92x = 51,672,367.74 × 20,699,465.09 - Step 4: Simplify right side
37,446,987.92x = 1,069,590,372,151,772.25 - Step 5: Solve for x
x = 1,069,590,372,151,772.25/37,446,987.92 - Step 6: Final answer
x = 28,562,787.87
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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.