Finding the Fourth Proportional to 27,519,621.85, 37,977,102.45 and 15,129,926.07
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Solution
The fourth proportional to 27,519,621.85, 37,977,102.45 and 15,129,926.07 is: 20,879,311.33
Step by Step Solution
- Step 1: Write the proportion equation
27,519,621.85 : 37,977,102.45 = 15,129,926.07 : x - Step 2: Convert to fraction form
27,519,621.85/37,977,102.45 = 15,129,926.07/x - Step 3: Cross multiply
27,519,621.85x = 37,977,102.45 × 15,129,926.07 - Step 4: Simplify right side
27,519,621.85x = 574,590,752,421,315.88 - Step 5: Solve for x
x = 574,590,752,421,315.88/27,519,621.85 - Step 6: Final answer
x = 20,879,311.33
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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.