Finding the Fourth Proportional to 7,143,625.36, 9,840,177.03 and 5,763,103.48
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Solution
The fourth proportional to 7,143,625.36, 9,840,177.03 and 5,763,103.48 is: 7,938,540.39
Step by Step Solution
- Step 1: Write the proportion equation
7,143,625.36 : 9,840,177.03 = 5,763,103.48 : x - Step 2: Convert to fraction form
7,143,625.36/9,840,177.03 = 5,763,103.48/x - Step 3: Cross multiply
7,143,625.36x = 9,840,177.03 × 5,763,103.48 - Step 4: Simplify right side
7,143,625.36x = 56,709,958,485,409.06 - Step 5: Solve for x
x = 56,709,958,485,409.06/7,143,625.36 - Step 6: Final answer
x = 7,938,540.39
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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.