Finding the Fourth Proportional to 5,147,637.36, 7,104,369.56 and 2,972,176.86
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Solution
The fourth proportional to 5,147,637.36, 7,104,369.56 and 2,972,176.86 is: 4,101,967.82
Step by Step Solution
- Step 1: Write the proportion equation
5,147,637.36 : 7,104,369.56 = 2,972,176.86 : x - Step 2: Convert to fraction form
5,147,637.36/7,104,369.56 = 2,972,176.86/x - Step 3: Cross multiply
5,147,637.36x = 7,104,369.56 × 2,972,176.86 - Step 4: Simplify right side
5,147,637.36x = 21,115,442,818,550.82 - Step 5: Solve for x
x = 21,115,442,818,550.82/5,147,637.36 - Step 6: Final answer
x = 4,101,967.82
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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.