Finding the Fourth Proportional to 20,144,496.12, 27,799,440.08 and 10,977,138.87
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Solution
The fourth proportional to 20,144,496.12, 27,799,440.08 and 10,977,138.87 is: 15,148,470.95
Step by Step Solution
- Step 1: Write the proportion equation
20,144,496.12 : 27,799,440.08 = 10,977,138.87 : x - Step 2: Convert to fraction form
20,144,496.12/27,799,440.08 = 10,977,138.87/x - Step 3: Cross multiply
20,144,496.12x = 27,799,440.08 × 10,977,138.87 - Step 4: Simplify right side
20,144,496.12x = 305,158,314,211,518.19 - Step 5: Solve for x
x = 305,158,314,211,518.19/20,144,496.12 - Step 6: Final answer
x = 15,148,470.95
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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.