Finding the Fourth Proportional to 18,878,670.05, 28,276,014.68 and 15,519,438.05
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Solution
The fourth proportional to 18,878,670.05, 28,276,014.68 and 15,519,438.05 is: 23,244,638.36
Step by Step Solution
- Step 1: Write the proportion equation
18,878,670.05 : 28,276,014.68 = 15,519,438.05 : x - Step 2: Convert to fraction form
18,878,670.05/28,276,014.68 = 15,519,438.05/x - Step 3: Cross multiply
18,878,670.05x = 28,276,014.68 × 15,519,438.05 - Step 4: Simplify right side
18,878,670.05x = 438,827,858,049,553.44 - Step 5: Solve for x
x = 438,827,858,049,553.44/18,878,670.05 - Step 6: Final answer
x = 23,244,638.36
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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.