Finding the Fourth Proportional to 11,190,773.80, 16,794,455.10 and 7,402,997.80
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Solution
The fourth proportional to 11,190,773.80, 16,794,455.10 and 7,402,997.80 is: 11,109,983.67
Step by Step Solution
- Step 1: Write the proportion equation
11,190,773.80 : 16,794,455.10 = 7,402,997.80 : x - Step 2: Convert to fraction form
11,190,773.80/16,794,455.10 = 7,402,997.80/x - Step 3: Cross multiply
11,190,773.80x = 16,794,455.10 × 7,402,997.80 - Step 4: Simplify right side
11,190,773.80x = 124,329,314,157,498.78 - Step 5: Solve for x
x = 124,329,314,157,498.78/11,190,773.80 - Step 6: Final answer
x = 11,109,983.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.