Finding the Fourth Proportional to 4,989,727.80, 7,484,591.70 and 2,722,246.20
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Solution
The fourth proportional to 4,989,727.80, 7,484,591.70 and 2,722,246.20 is: 4,083,369.30
Step by Step Solution
- Step 1: Write the proportion equation
4,989,727.80 : 7,484,591.70 = 2,722,246.20 : x - Step 2: Convert to fraction form
4,989,727.80/7,484,591.70 = 2,722,246.20/x - Step 3: Cross multiply
4,989,727.80x = 7,484,591.70 × 2,722,246.20 - Step 4: Simplify right side
4,989,727.80x = 20,374,901,313,876.54 - Step 5: Solve for x
x = 20,374,901,313,876.54/4,989,727.80 - Step 6: Final answer
x = 4,083,369.30
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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.