Finding the Fourth Proportional to 13,857,582.41, 19,122,834.12 and 7,976,966.32
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Solution
The fourth proportional to 13,857,582.41, 19,122,834.12 and 7,976,966.32 is: 11,007,851.09
Step by Step Solution
- Step 1: Write the proportion equation
13,857,582.41 : 19,122,834.12 = 7,976,966.32 : x - Step 2: Convert to fraction form
13,857,582.41/19,122,834.12 = 7,976,966.32/x - Step 3: Cross multiply
13,857,582.41x = 19,122,834.12 × 7,976,966.32 - Step 4: Simplify right side
13,857,582.41x = 152,542,203,649,481.25 - Step 5: Solve for x
x = 152,542,203,649,481.25/13,857,582.41 - Step 6: Final answer
x = 11,007,851.09
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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.