Finding the Fourth Proportional to 12,778,883.11, 17,634,788.49 and 6,977,623.66
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Solution
The fourth proportional to 12,778,883.11, 17,634,788.49 and 6,977,623.66 is: 9,629,082.32
Step by Step Solution
- Step 1: Write the proportion equation
12,778,883.11 : 17,634,788.49 = 6,977,623.66 : x - Step 2: Convert to fraction form
12,778,883.11/17,634,788.49 = 6,977,623.66/x - Step 3: Cross multiply
12,778,883.11x = 17,634,788.49 × 6,977,623.66 - Step 4: Simplify right side
12,778,883.11x = 123,048,917,406,919.67 - Step 5: Solve for x
x = 123,048,917,406,919.67/12,778,883.11 - Step 6: Final answer
x = 9,629,082.32
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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.