Finding the Fourth Proportional to 19,788,841.68, 27,310,237.62 and 10,971,059.99
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Solution
The fourth proportional to 19,788,841.68, 27,310,237.62 and 10,971,059.99 is: 15,140,969.85
Step by Step Solution
- Step 1: Write the proportion equation
19,788,841.68 : 27,310,237.62 = 10,971,059.99 : x - Step 2: Convert to fraction form
19,788,841.68/27,310,237.62 = 10,971,059.99/x - Step 3: Cross multiply
19,788,841.68x = 27,310,237.62 × 10,971,059.99 - Step 4: Simplify right side
19,788,841.68x = 299,622,255,270,174.81 - Step 5: Solve for x
x = 299,622,255,270,174.81/19,788,841.68 - Step 6: Final answer
x = 15,140,969.85
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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.