Finding the Fourth Proportional to 6,438,467.11, 8,885,055.49 and 3,537,849.55
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Solution
The fourth proportional to 6,438,467.11, 8,885,055.49 and 3,537,849.55 is: 4,882,216.38
Step by Step Solution
- Step 1: Write the proportion equation
6,438,467.11 : 8,885,055.49 = 3,537,849.55 : x - Step 2: Convert to fraction form
6,438,467.11/8,885,055.49 = 3,537,849.55/x - Step 3: Cross multiply
6,438,467.11x = 8,885,055.49 × 3,537,849.55 - Step 4: Simplify right side
6,438,467.11x = 31,433,989,567,021.53 - Step 5: Solve for x
x = 31,433,989,567,021.53/6,438,467.11 - Step 6: Final answer
x = 4,882,216.38
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1.5x scale
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.