Finding the Fourth Proportional to 4,890,891.40, 6,749,117.91 and 2,715,434.01
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Solution
The fourth proportional to 4,890,891.40, 6,749,117.91 and 2,715,434.01 is: 3,747,125.59
Step by Step Solution
- Step 1: Write the proportion equation
4,890,891.40 : 6,749,117.91 = 2,715,434.01 : x - Step 2: Convert to fraction form
4,890,891.40/6,749,117.91 = 2,715,434.01/x - Step 3: Cross multiply
4,890,891.40x = 6,749,117.91 × 2,715,434.01 - Step 4: Simplify right side
4,890,891.40x = 18,326,784,310,314.12 - Step 5: Solve for x
x = 18,326,784,310,314.12/4,890,891.40 - Step 6: Final answer
x = 3,747,125.59
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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.