Finding the Fourth Proportional to 10,369,918.99, 15,555,626.03 and 3,980,171.35
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Solution
The fourth proportional to 10,369,918.99, 15,555,626.03 and 3,980,171.35 is: 5,970,543.95
Step by Step Solution
- Step 1: Write the proportion equation
10,369,918.99 : 15,555,626.03 = 3,980,171.35 : x - Step 2: Convert to fraction form
10,369,918.99/15,555,626.03 = 3,980,171.35/x - Step 3: Cross multiply
10,369,918.99x = 15,555,626.03 × 3,980,171.35 - Step 4: Simplify right side
10,369,918.99x = 61,914,057,055,920.24 - Step 5: Solve for x
x = 61,914,057,055,920.24/10,369,918.99 - Step 6: Final answer
x = 5,970,543.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.