Finding the Fourth Proportional to 13,245,920.98, 18,275,260.98 and 7,735,320.68
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Solution
The fourth proportional to 13,245,920.98, 18,275,260.98 and 7,735,320.68 is: 10,672,342.41
Step by Step Solution
- Step 1: Write the proportion equation
13,245,920.98 : 18,275,260.98 = 7,735,320.68 : x - Step 2: Convert to fraction form
13,245,920.98/18,275,260.98 = 7,735,320.68/x - Step 3: Cross multiply
13,245,920.98x = 18,275,260.98 × 7,735,320.68 - Step 4: Simplify right side
13,245,920.98x = 141,365,004,190,991.06 - Step 5: Solve for x
x = 141,365,004,190,991.06/13,245,920.98 - Step 6: Final answer
x = 10,672,342.41
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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.