Finding the Fourth Proportional to 311,984,025.03, 430,986,403.80 and 249,177,660.21
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Solution
The fourth proportional to 311,984,025.03, 430,986,403.80 and 249,177,660.21 is: 344,223,341.79
Step by Step Solution
- Step 1: Write the proportion equation
311,984,025.03 : 430,986,403.80 = 249,177,660.21 : x - Step 2: Convert to fraction form
311,984,025.03/430,986,403.80 = 249,177,660.21/x - Step 3: Cross multiply
311,984,025.03x = 430,986,403.80 × 249,177,660.21 - Step 4: Simplify right side
311,984,025.03x = 107,392,183,681,206,256 - Step 5: Solve for x
x = 107,392,183,681,206,256/311,984,025.03 - Step 6: Final answer
x = 344,223,341.79
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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.