Finding the Fourth Proportional to 13,019,270.20, 17,967,657.60 and 7,219,871.08
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Solution
The fourth proportional to 13,019,270.20, 17,967,657.60 and 7,219,871.08 is: 9,964,012.54
Step by Step Solution
- Step 1: Write the proportion equation
13,019,270.20 : 17,967,657.60 = 7,219,871.08 : x - Step 2: Convert to fraction form
13,019,270.20/17,967,657.60 = 7,219,871.08/x - Step 3: Cross multiply
13,019,270.20x = 17,967,657.60 × 7,219,871.08 - Step 4: Simplify right side
13,019,270.20x = 129,724,171,481,582.22 - Step 5: Solve for x
x = 129,724,171,481,582.22/13,019,270.20 - Step 6: Final answer
x = 9,964,012.54
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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.