Finding the Fourth Proportional to 7,430,772.20, 11,135,660.70 and 5,496,589.40
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Solution
The fourth proportional to 7,430,772.20, 11,135,660.70 and 5,496,589.40 is: 8,237,118.96
Step by Step Solution
- Step 1: Write the proportion equation
7,430,772.20 : 11,135,660.70 = 5,496,589.40 : x - Step 2: Convert to fraction form
7,430,772.20/11,135,660.70 = 5,496,589.40/x - Step 3: Cross multiply
7,430,772.20x = 11,135,660.70 × 5,496,589.40 - Step 4: Simplify right side
7,430,772.20x = 61,208,154,565,616.58 - Step 5: Solve for x
x = 61,208,154,565,616.58/7,430,772.20 - Step 6: Final answer
x = 8,237,118.96
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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.