Finding the Fourth Proportional to 15,362,305.98, 21,200,255.19 and 8,486,377.98
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Solution
The fourth proportional to 15,362,305.98, 21,200,255.19 and 8,486,377.98 is: 11,711,352.39
Step by Step Solution
- Step 1: Write the proportion equation
15,362,305.98 : 21,200,255.19 = 8,486,377.98 : x - Step 2: Convert to fraction form
15,362,305.98/21,200,255.19 = 8,486,377.98/x - Step 3: Cross multiply
15,362,305.98x = 21,200,255.19 × 8,486,377.98 - Step 4: Simplify right side
15,362,305.98x = 179,913,378,814,796.75 - Step 5: Solve for x
x = 179,913,378,814,796.75/15,362,305.98 - Step 6: Final answer
x = 11,711,352.39
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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.