Finding the Fourth Proportional to 6,464,219.20, 9,696,328.80 and 5,667,057.70
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Solution
The fourth proportional to 6,464,219.20, 9,696,328.80 and 5,667,057.70 is: 8,500,586.55
Step by Step Solution
- Step 1: Write the proportion equation
6,464,219.20 : 9,696,328.80 = 5,667,057.70 : x - Step 2: Convert to fraction form
6,464,219.20/9,696,328.80 = 5,667,057.70/x - Step 3: Cross multiply
6,464,219.20x = 9,696,328.80 × 5,667,057.70 - Step 4: Simplify right side
6,464,219.20x = 54,949,654,787,771.77 - Step 5: Solve for x
x = 54,949,654,787,771.77/6,464,219.20 - Step 6: Final answer
x = 8,500,586.55
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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.