Finding the Fourth Proportional to 5,216,948.80, 7,825,423.20 and 2,183,790.40
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Solution
The fourth proportional to 5,216,948.80, 7,825,423.20 and 2,183,790.40 is: 3,275,685.60
Step by Step Solution
- Step 1: Write the proportion equation
5,216,948.80 : 7,825,423.20 = 2,183,790.40 : x - Step 2: Convert to fraction form
5,216,948.80/7,825,423.20 = 2,183,790.40/x - Step 3: Cross multiply
5,216,948.80x = 7,825,423.20 × 2,183,790.40 - Step 4: Simplify right side
5,216,948.80x = 17,089,084,060,097.28 - Step 5: Solve for x
x = 17,089,084,060,097.28/5,216,948.80 - Step 6: Final answer
x = 3,275,685.60
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1.5x scale
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.