Finding the Fourth Proportional to 19,601,869.38, 27,078,241.29 and 15,707,495.57
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Solution
The fourth proportional to 19,601,869.38, 27,078,241.29 and 15,707,495.57 is: 21,698,509.81
Step by Step Solution
- Step 1: Write the proportion equation
19,601,869.38 : 27,078,241.29 = 15,707,495.57 : x - Step 2: Convert to fraction form
19,601,869.38/27,078,241.29 = 15,707,495.57/x - Step 3: Cross multiply
19,601,869.38x = 27,078,241.29 × 15,707,495.57 - Step 4: Simplify right side
19,601,869.38x = 425,331,354,911,771.75 - Step 5: Solve for x
x = 425,331,354,911,771.75/19,601,869.38 - Step 6: Final answer
x = 21,698,509.81
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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.