Finding the Fourth Proportional to 35,543,612.80, 53,315,419.20 and 8,617,268.80
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Solution
The fourth proportional to 35,543,612.80, 53,315,419.20 and 8,617,268.80 is: 12,925,903.20
Step by Step Solution
- Step 1: Write the proportion equation
35,543,612.80 : 53,315,419.20 = 8,617,268.80 : x - Step 2: Convert to fraction form
35,543,612.80/53,315,419.20 = 8,617,268.80/x - Step 3: Cross multiply
35,543,612.80x = 53,315,419.20 × 8,617,268.80 - Step 4: Simplify right side
35,543,612.80x = 459,433,298,431,081 - Step 5: Solve for x
x = 459,433,298,431,081/35,543,612.80 - Step 6: Final answer
x = 12,925,903.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.