Finding the Fourth Proportional to 100,177,823.58, 138,259,991.13 and 56,127,799.92
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Solution
The fourth proportional to 100,177,823.58, 138,259,991.13 and 56,127,799.92 is: 77,464,540.97
Step by Step Solution
- Step 1: Write the proportion equation
100,177,823.58 : 138,259,991.13 = 56,127,799.92 : x - Step 2: Convert to fraction form
100,177,823.58/138,259,991.13 = 56,127,799.92/x - Step 3: Cross multiply
100,177,823.58x = 138,259,991.13 × 56,127,799.92 - Step 4: Simplify right side
100,177,823.58x = 7,760,229,119,085,615 - Step 5: Solve for x
x = 7,760,229,119,085,615/100,177,823.58 - Step 6: Final answer
x = 77,464,540.97
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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.