Finding the Fourth Proportional to 27,644,305.29, 38,149,952.07 and 15,086,170.79
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Solution
The fourth proportional to 27,644,305.29, 38,149,952.07 and 15,086,170.79 is: 20,819,358.15
Step by Step Solution
- Step 1: Write the proportion equation
27,644,305.29 : 38,149,952.07 = 15,086,170.79 : x - Step 2: Convert to fraction form
27,644,305.29/38,149,952.07 = 15,086,170.79/x - Step 3: Cross multiply
27,644,305.29x = 38,149,952.07 × 15,086,170.79 - Step 4: Simplify right side
27,644,305.29x = 575,536,692,558,334 - Step 5: Solve for x
x = 575,536,692,558,334/27,644,305.29 - Step 6: Final answer
x = 20,819,358.15
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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.