Finding the Fourth Proportional to 20,287,682.30, 30,434,366.01 and 6,641,896.70
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Solution
The fourth proportional to 20,287,682.30, 30,434,366.01 and 6,641,896.70 is: 9,963,775.66
Step by Step Solution
- Step 1: Write the proportion equation
20,287,682.30 : 30,434,366.01 = 6,641,896.70 : x - Step 2: Convert to fraction form
20,287,682.30/30,434,366.01 = 6,641,896.70/x - Step 3: Cross multiply
20,287,682.30x = 30,434,366.01 × 6,641,896.70 - Step 4: Simplify right side
20,287,682.30x = 202,141,915,168,411.19 - Step 5: Solve for x
x = 202,141,915,168,411.19/20,287,682.30 - Step 6: Final answer
x = 9,963,775.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.