Finding the Fourth Proportional to 13,661,262.09, 18,852,560.06 and 7,859,927.48
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Solution
The fourth proportional to 13,661,262.09, 18,852,560.06 and 7,859,927.48 is: 10,846,710.49
Step by Step Solution
- Step 1: Write the proportion equation
13,661,262.09 : 18,852,560.06 = 7,859,927.48 : x - Step 2: Convert to fraction form
13,661,262.09/18,852,560.06 = 7,859,927.48/x - Step 3: Cross multiply
13,661,262.09x = 18,852,560.06 × 7,859,927.48 - Step 4: Simplify right side
13,661,262.09x = 148,179,754,750,382 - Step 5: Solve for x
x = 148,179,754,750,382/13,661,262.09 - Step 6: Final answer
x = 10,846,710.49
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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.