Finding the Fourth Proportional to 7,470,566.40, 11,205,849.60 and 7,414,579.20
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Solution
The fourth proportional to 7,470,566.40, 11,205,849.60 and 7,414,579.20 is: 11,121,868.80
Step by Step Solution
- Step 1: Write the proportion equation
7,470,566.40 : 11,205,849.60 = 7,414,579.20 : x - Step 2: Convert to fraction form
7,470,566.40/11,205,849.60 = 7,414,579.20/x - Step 3: Cross multiply
7,470,566.40x = 11,205,849.60 × 7,414,579.20 - Step 4: Simplify right side
7,470,566.40x = 83,086,659,362,488.31 - Step 5: Solve for x
x = 83,086,659,362,488.31/7,470,566.40 - Step 6: Final answer
x = 11,121,868.80
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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.