Finding the Fourth Proportional to 7,464,902.20, 11,209,163.10 and 5,669,812.60
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Solution
The fourth proportional to 7,464,902.20, 11,209,163.10 and 5,669,812.60 is: 8,513,688.79
Step by Step Solution
- Step 1: Write the proportion equation
7,464,902.20 : 11,209,163.10 = 5,669,812.60 : x - Step 2: Convert to fraction form
7,464,902.20/11,209,163.10 = 5,669,812.60/x - Step 3: Cross multiply
7,464,902.20x = 11,209,163.10 × 5,669,812.60 - Step 4: Simplify right side
7,464,902.20x = 63,553,854,179,835.05 - Step 5: Solve for x
x = 63,553,854,179,835.05/7,464,902.20 - Step 6: Final answer
x = 8,513,688.79
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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.