Finding the Fourth Proportional to 4,080,490.30, 5,630,851.11 and 2,269,537.66
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Solution
The fourth proportional to 4,080,490.30, 5,630,851.11 and 2,269,537.66 is: 3,131,836.55
Step by Step Solution
- Step 1: Write the proportion equation
4,080,490.30 : 5,630,851.11 = 2,269,537.66 : x - Step 2: Convert to fraction form
4,080,490.30/5,630,851.11 = 2,269,537.66/x - Step 3: Cross multiply
4,080,490.30x = 5,630,851.11 × 2,269,537.66 - Step 4: Simplify right side
4,080,490.30x = 12,779,428,651,997.80 - Step 5: Solve for x
x = 12,779,428,651,997.80/4,080,490.30 - Step 6: Final answer
x = 3,131,836.55
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Double scale
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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.