Finding the Fourth Proportional to 11,556,963.36, 15,940,930.09 and 7,432,209.37
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Solution
The fourth proportional to 11,556,963.36, 15,940,930.09 and 7,432,209.37 is: 10,251,510.39
Step by Step Solution
- Step 1: Write the proportion equation
11,556,963.36 : 15,940,930.09 = 7,432,209.37 : x - Step 2: Convert to fraction form
11,556,963.36/15,940,930.09 = 7,432,209.37/x - Step 3: Cross multiply
11,556,963.36x = 15,940,930.09 × 7,432,209.37 - Step 4: Simplify right side
11,556,963.36x = 118,476,329,864,547.25 - Step 5: Solve for x
x = 118,476,329,864,547.25/11,556,963.36 - Step 6: Final answer
x = 10,251,510.39
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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.