Finding the Fourth Proportional to 7,490,486.90, 11,235,730.35 and 7,415,837.30
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Solution
The fourth proportional to 7,490,486.90, 11,235,730.35 and 7,415,837.30 is: 11,123,755.95
Step by Step Solution
- Step 1: Write the proportion equation
7,490,486.90 : 11,235,730.35 = 7,415,837.30 : x - Step 2: Convert to fraction form
7,490,486.90/11,235,730.35 = 7,415,837.30/x - Step 3: Cross multiply
7,490,486.90x = 11,235,730.35 × 7,415,837.30 - Step 4: Simplify right side
7,490,486.90x = 83,322,348,222,272.05 - Step 5: Solve for x
x = 83,322,348,222,272.05/7,490,486.90 - Step 6: Final answer
x = 11,123,755.95
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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.