Finding the Fourth Proportional to 27,955,748.16, 38,572,549.92 and 15,728,143.68
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Solution
The fourth proportional to 27,955,748.16, 38,572,549.92 and 15,728,143.68 is: 21,701,247.41
Step by Step Solution
- Step 1: Write the proportion equation
27,955,748.16 : 38,572,549.92 = 15,728,143.68 : x - Step 2: Convert to fraction form
27,955,748.16/38,572,549.92 = 15,728,143.68/x - Step 3: Cross multiply
27,955,748.16x = 38,572,549.92 × 15,728,143.68 - Step 4: Simplify right side
27,955,748.16x = 606,674,607,245,732.50 - Step 5: Solve for x
x = 606,674,607,245,732.50/27,955,748.16 - Step 6: Final answer
x = 21,701,247.41
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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.