Finding the Fourth Proportional to 20,239,751.98, 27,931,517.67 and 11,072,394.46
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Solution
The fourth proportional to 20,239,751.98, 27,931,517.67 and 11,072,394.46 is: 15,280,265.38
Step by Step Solution
- Step 1: Write the proportion equation
20,239,751.98 : 27,931,517.67 = 11,072,394.46 : x - Step 2: Convert to fraction form
20,239,751.98/27,931,517.67 = 11,072,394.46/x - Step 3: Cross multiply
20,239,751.98x = 27,931,517.67 × 11,072,394.46 - Step 4: Simplify right side
20,239,751.98x = 309,268,781,508,700.12 - Step 5: Solve for x
x = 309,268,781,508,700.12/20,239,751.98 - Step 6: Final answer
x = 15,280,265.38
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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.