Finding the Fourth Proportional to 21,475,470.87, 32,218,251.80 and 7,098,539.09
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Solution
The fourth proportional to 21,475,470.87, 32,218,251.80 and 7,098,539.09 is: 10,649,476.37
Step by Step Solution
- Step 1: Write the proportion equation
21,475,470.87 : 32,218,251.80 = 7,098,539.09 : x - Step 2: Convert to fraction form
21,475,470.87/32,218,251.80 = 7,098,539.09/x - Step 3: Cross multiply
21,475,470.87x = 32,218,251.80 × 7,098,539.09 - Step 4: Simplify right side
21,475,470.87x = 228,702,519,617,178.91 - Step 5: Solve for x
x = 228,702,519,617,178.91/21,475,470.87 - Step 6: Final answer
x = 10,649,476.37
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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.