Finding the Fourth Proportional to 13,605,218.85, 18,774,493.42 and 8,448,470.49
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Solution
The fourth proportional to 13,605,218.85, 18,774,493.42 and 8,448,470.49 is: 11,658,449.26
Step by Step Solution
- Step 1: Write the proportion equation
13,605,218.85 : 18,774,493.42 = 8,448,470.49 : x - Step 2: Convert to fraction form
13,605,218.85/18,774,493.42 = 8,448,470.49/x - Step 3: Cross multiply
13,605,218.85x = 18,774,493.42 × 8,448,470.49 - Step 4: Simplify right side
13,605,218.85x = 158,615,753,623,569.19 - Step 5: Solve for x
x = 158,615,753,623,569.19/13,605,218.85 - Step 6: Final answer
x = 11,658,449.26
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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.