Finding the Fourth Proportional to 20,302,866.19, 27,986,959.60 and 12,447,836.07
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Solution
The fourth proportional to 20,302,866.19, 27,986,959.60 and 12,447,836.07 is: 17,159,010.05
Step by Step Solution
- Step 1: Write the proportion equation
20,302,866.19 : 27,986,959.60 = 12,447,836.07 : x - Step 2: Convert to fraction form
20,302,866.19/27,986,959.60 = 12,447,836.07/x - Step 3: Cross multiply
20,302,866.19x = 27,986,959.60 × 12,447,836.07 - Step 4: Simplify right side
20,302,866.19x = 348,377,085,062,442.06 - Step 5: Solve for x
x = 348,377,085,062,442.06/20,302,866.19 - Step 6: Final answer
x = 17,159,010.05
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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.