Finding the Fourth Proportional to 7,187,109.91, 9,918,159.81 and 3,923,924.62
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Solution
The fourth proportional to 7,187,109.91, 9,918,159.81 and 3,923,924.62 is: 5,414,987.66
Step by Step Solution
- Step 1: Write the proportion equation
7,187,109.91 : 9,918,159.81 = 3,923,924.62 : x - Step 2: Convert to fraction form
7,187,109.91/9,918,159.81 = 3,923,924.62/x - Step 3: Cross multiply
7,187,109.91x = 9,918,159.81 × 3,923,924.62 - Step 4: Simplify right side
7,187,109.91x = 38,918,111,463,553.52 - Step 5: Solve for x
x = 38,918,111,463,553.52/7,187,109.91 - Step 6: Final answer
x = 5,414,987.66
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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.