Finding the Fourth Proportional to 11,556,962.85, 15,940,929.40 and 7,432,208.87
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Solution
The fourth proportional to 11,556,962.85, 15,940,929.40 and 7,432,208.87 is: 10,251,509.70
Step by Step Solution
- Step 1: Write the proportion equation
11,556,962.85 : 15,940,929.40 = 7,432,208.87 : x - Step 2: Convert to fraction form
11,556,962.85/15,940,929.40 = 7,432,208.87/x - Step 3: Cross multiply
11,556,962.85x = 15,940,929.40 × 7,432,208.87 - Step 4: Simplify right side
11,556,962.85x = 118,476,316,784,438.62 - Step 5: Solve for x
x = 118,476,316,784,438.62/11,556,962.85 - Step 6: Final answer
x = 10,251,509.70
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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.