Finding the Fourth Proportional to 20,120,694.94, 27,766,480.05 and 11,298,921.96
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Solution
The fourth proportional to 20,120,694.94, 27,766,480.05 and 11,298,921.96 is: 15,592,467.96
Step by Step Solution
- Step 1: Write the proportion equation
20,120,694.94 : 27,766,480.05 = 11,298,921.96 : x - Step 2: Convert to fraction form
20,120,694.94/27,766,480.05 = 11,298,921.96/x - Step 3: Cross multiply
20,120,694.94x = 27,766,480.05 × 11,298,921.96 - Step 4: Simplify right side
20,120,694.94x = 313,731,291,292,971.19 - Step 5: Solve for x
x = 313,731,291,292,971.19/20,120,694.94 - Step 6: Final answer
x = 15,592,467.96
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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.