Finding the Fourth Proportional to 6,438,468.61, 8,885,057.56 and 3,537,851.05
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Solution
The fourth proportional to 6,438,468.61, 8,885,057.56 and 3,537,851.05 is: 4,882,218.45
Step by Step Solution
- Step 1: Write the proportion equation
6,438,468.61 : 8,885,057.56 = 3,537,851.05 : x - Step 2: Convert to fraction form
6,438,468.61/8,885,057.56 = 3,537,851.05/x - Step 3: Cross multiply
6,438,468.61x = 8,885,057.56 × 3,537,851.05 - Step 4: Simplify right side
6,438,468.61x = 31,434,010,217,956.44 - Step 5: Solve for x
x = 31,434,010,217,956.44/6,438,468.61 - Step 6: Final answer
x = 4,882,218.45
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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.