Finding the Fourth Proportional to 19,128,841.47, 26,396,805.11 and 10,867,757.18
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Solution
The fourth proportional to 19,128,841.47, 26,396,805.11 and 10,867,757.18 is: 14,996,938.97
Step by Step Solution
- Step 1: Write the proportion equation
19,128,841.47 : 26,396,805.11 = 10,867,757.18 : x - Step 2: Convert to fraction form
19,128,841.47/26,396,805.11 = 10,867,757.18/x - Step 3: Cross multiply
19,128,841.47x = 26,396,805.11 × 10,867,757.18 - Step 4: Simplify right side
19,128,841.47x = 286,874,068,076,940.38 - Step 5: Solve for x
x = 286,874,068,076,940.38/19,128,841.47 - Step 6: Final answer
x = 14,996,938.97
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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.