Finding the Fourth Proportional to 9,986,447.13, 13,728,394.29 and 8,585,848.94
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Solution
The fourth proportional to 9,986,447.13, 13,728,394.29 and 8,585,848.94 is: 11,802,988.39
Step by Step Solution
- Step 1: Write the proportion equation
9,986,447.13 : 13,728,394.29 = 8,585,848.94 : x - Step 2: Convert to fraction form
9,986,447.13/13,728,394.29 = 8,585,848.94/x - Step 3: Cross multiply
9,986,447.13x = 13,728,394.29 × 8,585,848.94 - Step 4: Simplify right side
9,986,447.13x = 117,869,919,562,698.53 - Step 5: Solve for x
x = 117,869,919,562,698.53/9,986,447.13 - Step 6: Final answer
x = 11,802,988.39
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.