Finding the Fourth Proportional to 13,618,762.04, 18,795,015.16 and 7,818,663.08
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Solution
The fourth proportional to 13,618,762.04, 18,795,015.16 and 7,818,663.08 is: 10,790,400.09
Step by Step Solution
- Step 1: Write the proportion equation
13,618,762.04 : 18,795,015.16 = 7,818,663.08 : x - Step 2: Convert to fraction form
13,618,762.04/18,795,015.16 = 7,818,663.08/x - Step 3: Cross multiply
13,618,762.04x = 18,795,015.16 × 7,818,663.08 - Step 4: Simplify right side
13,618,762.04x = 146,951,891,119,532.28 - Step 5: Solve for x
x = 146,951,891,119,532.28/13,618,762.04 - Step 6: Final answer
x = 10,790,400.09
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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.