Finding the Fourth Proportional to 13,712,273.66, 18,922,816.96 and 7,517,207.80
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Solution
The fourth proportional to 13,712,273.66, 18,922,816.96 and 7,517,207.80 is: 10,373,680.60
Step by Step Solution
- Step 1: Write the proportion equation
13,712,273.66 : 18,922,816.96 = 7,517,207.80 : x - Step 2: Convert to fraction form
13,712,273.66/18,922,816.96 = 7,517,207.80/x - Step 3: Cross multiply
13,712,273.66x = 18,922,816.96 × 7,517,207.80 - Step 4: Simplify right side
13,712,273.66x = 142,246,747,254,544.78 - Step 5: Solve for x
x = 142,246,747,254,544.78/13,712,273.66 - Step 6: Final answer
x = 10,373,680.60
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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.