Finding the Fourth Proportional to 20,260,486.18, 27,959,479.57 and 10,968,056.00
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Solution
The fourth proportional to 20,260,486.18, 27,959,479.57 and 10,968,056.00 is: 15,135,921.96
Step by Step Solution
- Step 1: Write the proportion equation
20,260,486.18 : 27,959,479.57 = 10,968,056.00 : x - Step 2: Convert to fraction form
20,260,486.18/27,959,479.57 = 10,968,056.00/x - Step 3: Cross multiply
20,260,486.18x = 27,959,479.57 × 10,968,056.00 - Step 4: Simplify right side
20,260,486.18x = 306,661,137,633,376.62 - Step 5: Solve for x
x = 306,661,137,633,376.62/20,260,486.18 - Step 6: Final answer
x = 15,135,921.96
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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.