Finding the Fourth Proportional to 15,657,544.08, 21,607,449.84 and 9,135,657.36
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Solution
The fourth proportional to 15,657,544.08, 21,607,449.84 and 9,135,657.36 is: 12,607,229.92
Step by Step Solution
- Step 1: Write the proportion equation
15,657,544.08 : 21,607,449.84 = 9,135,657.36 : x - Step 2: Convert to fraction form
15,657,544.08/21,607,449.84 = 9,135,657.36/x - Step 3: Cross multiply
15,657,544.08x = 21,607,449.84 × 9,135,657.36 - Step 4: Simplify right side
15,657,544.08x = 197,398,258,161,626.81 - Step 5: Solve for x
x = 197,398,258,161,626.81/15,657,544.08 - Step 6: Final answer
x = 12,607,229.92
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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.