Finding the Fourth Proportional to 27,428,311.89, 37,850,869.35 and 15,038,201.09
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Solution
The fourth proportional to 27,428,311.89, 37,850,869.35 and 15,038,201.09 is: 20,752,607.27
Step by Step Solution
- Step 1: Write the proportion equation
27,428,311.89 : 37,850,869.35 = 15,038,201.09 : x - Step 2: Convert to fraction form
27,428,311.89/37,850,869.35 = 15,038,201.09/x - Step 3: Cross multiply
27,428,311.89x = 37,850,869.35 × 15,038,201.09 - Step 4: Simplify right side
27,428,311.89x = 569,208,984,811,244.75 - Step 5: Solve for x
x = 569,208,984,811,244.75/27,428,311.89 - Step 6: Final answer
x = 20,752,607.27
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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.