Finding the Fourth Proportional to 725,783,685.20, 1,088,675,527.80 and 265,568,901.20
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Solution
The fourth proportional to 725,783,685.20, 1,088,675,527.80 and 265,568,901.20 is: 398,353,351.80
Step by Step Solution
- Step 1: Write the proportion equation
725,783,685.20 : 1,088,675,527.80 = 265,568,901.20 : x - Step 2: Convert to fraction form
725,783,685.20/1,088,675,527.80 = 265,568,901.20/x - Step 3: Cross multiply
725,783,685.20x = 1,088,675,527.80 × 265,568,901.20 - Step 4: Simplify right side
725,783,685.20x = 289,118,363,681,176,000 - Step 5: Solve for x
x = 289,118,363,681,176,000/725,783,685.20 - Step 6: Final answer
x = 398,353,351.80
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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.