Finding the Fourth Proportional to 20,258,534.56, 27,956,859.60 and 11,092,030.24
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Solution
The fourth proportional to 20,258,534.56, 27,956,859.60 and 11,092,030.24 is: 15,307,046.58
Step by Step Solution
- Step 1: Write the proportion equation
20,258,534.56 : 27,956,859.60 = 11,092,030.24 : x - Step 2: Convert to fraction form
20,258,534.56/27,956,859.60 = 11,092,030.24/x - Step 3: Cross multiply
20,258,534.56x = 27,956,859.60 × 11,092,030.24 - Step 4: Simplify right side
20,258,534.56x = 310,098,332,098,634.31 - Step 5: Solve for x
x = 310,098,332,098,634.31/20,258,534.56 - Step 6: Final answer
x = 15,307,046.58
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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.