Finding the Fourth Proportional to 5,656,518.09, 7,805,980.53 and 3,078,198.18
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Solution
The fourth proportional to 5,656,518.09, 7,805,980.53 and 3,078,198.18 is: 4,247,905.63
Step by Step Solution
- Step 1: Write the proportion equation
5,656,518.09 : 7,805,980.53 = 3,078,198.18 : x - Step 2: Convert to fraction form
5,656,518.09/7,805,980.53 = 3,078,198.18/x - Step 3: Cross multiply
5,656,518.09x = 7,805,980.53 × 3,078,198.18 - Step 4: Simplify right side
5,656,518.09x = 24,028,355,060,561.44 - Step 5: Solve for x
x = 24,028,355,060,561.44/5,656,518.09 - Step 6: Final answer
x = 4,247,905.63
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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.