Finding the Fourth Proportional to 13,541,440.58, 18,687,185.97 and 7,740,346.88
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Solution
The fourth proportional to 13,541,440.58, 18,687,185.97 and 7,740,346.88 is: 10,681,677.53
Step by Step Solution
- Step 1: Write the proportion equation
13,541,440.58 : 18,687,185.97 = 7,740,346.88 : x - Step 2: Convert to fraction form
13,541,440.58/18,687,185.97 = 7,740,346.88/x - Step 3: Cross multiply
13,541,440.58x = 18,687,185.97 × 7,740,346.88 - Step 4: Simplify right side
13,541,440.58x = 144,645,301,618,869.25 - Step 5: Solve for x
x = 144,645,301,618,869.25/13,541,440.58 - Step 6: Final answer
x = 10,681,677.53
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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.