Finding the Fourth Proportional to 13,541,542.36, 18,687,326.26 and 7,740,448.66
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Solution
The fourth proportional to 13,541,542.36, 18,687,326.26 and 7,740,448.66 is: 10,681,817.89
Step by Step Solution
- Step 1: Write the proportion equation
13,541,542.36 : 18,687,326.26 = 7,740,448.66 : x - Step 2: Convert to fraction form
13,541,542.36/18,687,326.26 = 7,740,448.66/x - Step 3: Cross multiply
13,541,542.36x = 18,687,326.26 × 7,740,448.66 - Step 4: Simplify right side
13,541,542.36x = 144,648,289,426,116.97 - Step 5: Solve for x
x = 144,648,289,426,116.97/13,541,542.36 - Step 6: Final answer
x = 10,681,817.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.