Finding the Fourth Proportional to 27,930,508.63, 38,543,497.47 and 16,170,272.87
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Solution
The fourth proportional to 27,930,508.63, 38,543,497.47 and 16,170,272.87 is: 22,314,626.62
Step by Step Solution
- Step 1: Write the proportion equation
27,930,508.63 : 38,543,497.47 = 16,170,272.87 : x - Step 2: Convert to fraction form
27,930,508.63/38,543,497.47 = 16,170,272.87/x - Step 3: Cross multiply
27,930,508.63x = 38,543,497.47 × 16,170,272.87 - Step 4: Simplify right side
27,930,508.63x = 623,258,871,261,337.12 - Step 5: Solve for x
x = 623,258,871,261,337.12/27,930,508.63 - Step 6: Final answer
x = 22,314,626.62
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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.