Finding the Fourth Proportional to 21,424,117.60, 29,565,190.86 and 11,634,493.24
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Solution
The fourth proportional to 21,424,117.60, 29,565,190.86 and 11,634,493.24 is: 16,055,551.02
Step by Step Solution
- Step 1: Write the proportion equation
21,424,117.60 : 29,565,190.86 = 11,634,493.24 : x - Step 2: Convert to fraction form
21,424,117.60/29,565,190.86 = 11,634,493.24/x - Step 3: Cross multiply
21,424,117.60x = 29,565,190.86 × 11,634,493.24 - Step 4: Simplify right side
21,424,117.60x = 343,976,013,199,979.81 - Step 5: Solve for x
x = 343,976,013,199,979.81/21,424,117.60 - Step 6: Final answer
x = 16,055,551.02
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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.