Finding the Fourth Proportional to 3,718,548.80, 5,132,112.12 and 2,087,053.28
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Solution
The fourth proportional to 3,718,548.80, 5,132,112.12 and 2,087,053.28 is: 2,880,422.45
Step by Step Solution
- Step 1: Write the proportion equation
3,718,548.80 : 5,132,112.12 = 2,087,053.28 : x - Step 2: Convert to fraction form
3,718,548.80/5,132,112.12 = 2,087,053.28/x - Step 3: Cross multiply
3,718,548.80x = 5,132,112.12 × 2,087,053.28 - Step 4: Simplify right side
3,718,548.80x = 10,710,991,433,373.75 - Step 5: Solve for x
x = 10,710,991,433,373.75/3,718,548.80 - Step 6: Final answer
x = 2,880,422.45
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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.