Finding the Fourth Proportional to 13,891,437.97, 19,169,935.67 and 7,696,360.33
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Solution
The fourth proportional to 13,891,437.97, 19,169,935.67 and 7,696,360.33 is: 10,620,839.45
Step by Step Solution
- Step 1: Write the proportion equation
13,891,437.97 : 19,169,935.67 = 7,696,360.33 : x - Step 2: Convert to fraction form
13,891,437.97/19,169,935.67 = 7,696,360.33/x - Step 3: Cross multiply
13,891,437.97x = 19,169,935.67 × 7,696,360.33 - Step 4: Simplify right side
13,891,437.97x = 147,538,732,390,556.03 - Step 5: Solve for x
x = 147,538,732,390,556.03/13,891,437.97 - Step 6: Final answer
x = 10,620,839.45
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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.