Finding the Fourth Proportional to 7,121,745.16, 10,682,631.10 and 1,730,400.14
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Solution
The fourth proportional to 7,121,745.16, 10,682,631.10 and 1,730,400.14 is: 2,595,603.46
Step by Step Solution
- Step 1: Write the proportion equation
7,121,745.16 : 10,682,631.10 = 1,730,400.14 : x - Step 2: Convert to fraction form
7,121,745.16/10,682,631.10 = 1,730,400.14/x - Step 3: Cross multiply
7,121,745.16x = 10,682,631.10 × 1,730,400.14 - Step 4: Simplify right side
7,121,745.16x = 18,485,226,351,008.35 - Step 5: Solve for x
x = 18,485,226,351,008.35/7,121,745.16 - Step 6: Final answer
x = 2,595,603.46
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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.