Finding the Fourth Proportional to 12,779,107.72, 17,635,254.09 and 6,977,929.84
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Solution
The fourth proportional to 12,779,107.72, 17,635,254.09 and 6,977,929.84 is: 9,629,589.83
Step by Step Solution
- Step 1: Write the proportion equation
12,779,107.72 : 17,635,254.09 = 6,977,929.84 : x - Step 2: Convert to fraction form
12,779,107.72/17,635,254.09 = 6,977,929.84/x - Step 3: Cross multiply
12,779,107.72x = 17,635,254.09 × 6,977,929.84 - Step 4: Simplify right side
12,779,107.72x = 123,057,565,750,593.05 - Step 5: Solve for x
x = 123,057,565,750,593.05/12,779,107.72 - Step 6: Final answer
x = 9,629,589.83
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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.