Finding the Fourth Proportional to 18,764,574.75, 25,894,938.20 and 10,615,812.75
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Solution
The fourth proportional to 18,764,574.75, 25,894,938.20 and 10,615,812.75 is: 14,649,722.61
Step by Step Solution
- Step 1: Write the proportion equation
18,764,574.75 : 25,894,938.20 = 10,615,812.75 : x - Step 2: Convert to fraction form
18,764,574.75/25,894,938.20 = 10,615,812.75/x - Step 3: Cross multiply
18,764,574.75x = 25,894,938.20 × 10,615,812.75 - Step 4: Simplify right side
18,764,574.75x = 274,895,815,050,943 - Step 5: Solve for x
x = 274,895,815,050,943/18,764,574.75 - Step 6: Final answer
x = 14,649,722.61
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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.