Finding the Fourth Proportional to 13,498,851.93, 18,628,403.60 and 7,619,723.65
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Solution
The fourth proportional to 13,498,851.93, 18,628,403.60 and 7,619,723.65 is: 10,515,211.82
Step by Step Solution
- Step 1: Write the proportion equation
13,498,851.93 : 18,628,403.60 = 7,619,723.65 : x - Step 2: Convert to fraction form
13,498,851.93/18,628,403.60 = 7,619,723.65/x - Step 3: Cross multiply
13,498,851.93x = 18,628,403.60 × 7,619,723.65 - Step 4: Simplify right side
13,498,851.93x = 141,943,287,341,424.50 - Step 5: Solve for x
x = 141,943,287,341,424.50/13,498,851.93 - Step 6: Final answer
x = 10,515,211.82
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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.