Finding the Fourth Proportional to 5,242,807.36, 7,854,135.18 and 3,215,138.68
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Solution
The fourth proportional to 5,242,807.36, 7,854,135.18 and 3,215,138.68 is: 4,816,529.02
Step by Step Solution
- Step 1: Write the proportion equation
5,242,807.36 : 7,854,135.18 = 3,215,138.68 : x - Step 2: Convert to fraction form
5,242,807.36/7,854,135.18 = 3,215,138.68/x - Step 3: Cross multiply
5,242,807.36x = 7,854,135.18 × 3,215,138.68 - Step 4: Simplify right side
5,242,807.36x = 25,252,133,815,166.76 - Step 5: Solve for x
x = 25,252,133,815,166.76/5,242,807.36 - Step 6: Final answer
x = 4,816,529.02
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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.