Finding the Fourth Proportional to 15,316,412.62, 21,136,649.09 and 8,440,894.69
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Solution
The fourth proportional to 15,316,412.62, 21,136,649.09 and 8,440,894.69 is: 11,648,434.49
Step by Step Solution
- Step 1: Write the proportion equation
15,316,412.62 : 21,136,649.09 = 8,440,894.69 : x - Step 2: Convert to fraction form
15,316,412.62/21,136,649.09 = 8,440,894.69/x - Step 3: Cross multiply
15,316,412.62x = 21,136,649.09 × 8,440,894.69 - Step 4: Simplify right side
15,316,412.62x = 178,412,229,068,174.31 - Step 5: Solve for x
x = 178,412,229,068,174.31/15,316,412.62 - Step 6: Final answer
x = 11,648,434.49
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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.