Finding the Fourth Proportional to 2,919,208.05, 4,378,812.08 and 2,116,724.85
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Solution
The fourth proportional to 2,919,208.05, 4,378,812.08 and 2,116,724.85 is: 3,175,087.28
Step by Step Solution
- Step 1: Write the proportion equation
2,919,208.05 : 4,378,812.08 = 2,116,724.85 : x - Step 2: Convert to fraction form
2,919,208.05/4,378,812.08 = 2,116,724.85/x - Step 3: Cross multiply
2,919,208.05x = 4,378,812.08 × 2,116,724.85 - Step 4: Simplify right side
2,919,208.05x = 9,268,740,343,216.19 - Step 5: Solve for x
x = 9,268,740,343,216.19/2,919,208.05 - Step 6: Final answer
x = 3,175,087.28
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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.