Finding the Fourth Proportional to 12,961,874.08, 17,887,897.86 and 7,455,240.14
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Solution
The fourth proportional to 12,961,874.08, 17,887,897.86 and 7,455,240.14 is: 10,288,525.67
Step by Step Solution
- Step 1: Write the proportion equation
12,961,874.08 : 17,887,897.86 = 7,455,240.14 : x - Step 2: Convert to fraction form
12,961,874.08/17,887,897.86 = 7,455,240.14/x - Step 3: Cross multiply
12,961,874.08x = 17,887,897.86 × 7,455,240.14 - Step 4: Simplify right side
12,961,874.08x = 133,358,574,146,092.09 - Step 5: Solve for x
x = 133,358,574,146,092.09/12,961,874.08 - Step 6: Final answer
x = 10,288,525.67
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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.