Finding the Fourth Proportional to 5,178,802.70, 7,768,204.05 and 3,293,900.30
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Solution
The fourth proportional to 5,178,802.70, 7,768,204.05 and 3,293,900.30 is: 4,940,850.45
Step by Step Solution
- Step 1: Write the proportion equation
5,178,802.70 : 7,768,204.05 = 3,293,900.30 : x - Step 2: Convert to fraction form
5,178,802.70/7,768,204.05 = 3,293,900.30/x - Step 3: Cross multiply
5,178,802.70x = 7,768,204.05 × 3,293,900.30 - Step 4: Simplify right side
5,178,802.70x = 25,587,689,650,756.21 - Step 5: Solve for x
x = 25,587,689,650,756.21/5,178,802.70 - Step 6: Final answer
x = 4,940,850.45
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Similar ratio
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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.