Finding the Fourth Proportional to 5,285,631.90, 7,928,447.85 and 4,676,771.10
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Solution
The fourth proportional to 5,285,631.90, 7,928,447.85 and 4,676,771.10 is: 7,015,156.65
Step by Step Solution
- Step 1: Write the proportion equation
5,285,631.90 : 7,928,447.85 = 4,676,771.10 : x - Step 2: Convert to fraction form
5,285,631.90/7,928,447.85 = 4,676,771.10/x - Step 3: Cross multiply
5,285,631.90x = 7,928,447.85 × 4,676,771.10 - Step 4: Simplify right side
5,285,631.90x = 37,079,535,772,737.13 - Step 5: Solve for x
x = 37,079,535,772,737.13/5,285,631.90 - Step 6: Final answer
x = 7,015,156.65
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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.