Finding the Fourth Proportional to 7,190,298.75, 9,916,040.63 and 5,620,637.96
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Solution
The fourth proportional to 7,190,298.75, 9,916,040.63 and 5,620,637.96 is: 7,751,343.35
Step by Step Solution
- Step 1: Write the proportion equation
7,190,298.75 : 9,916,040.63 = 5,620,637.96 : x - Step 2: Convert to fraction form
7,190,298.75/9,916,040.63 = 5,620,637.96/x - Step 3: Cross multiply
7,190,298.75x = 9,916,040.63 × 5,620,637.96 - Step 4: Simplify right side
7,190,298.75x = 55,734,474,377,880.32 - Step 5: Solve for x
x = 55,734,474,377,880.32/7,190,298.75 - Step 6: Final answer
x = 7,751,343.35
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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.