Finding the Fourth Proportional to 7,713,226.21, 10,644,021.45 and 4,228,445.80
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Solution
The fourth proportional to 7,713,226.21, 10,644,021.45 and 4,228,445.80 is: 5,835,128.72
Step by Step Solution
- Step 1: Write the proportion equation
7,713,226.21 : 10,644,021.45 = 4,228,445.80 : x - Step 2: Convert to fraction form
7,713,226.21/10,644,021.45 = 4,228,445.80/x - Step 3: Cross multiply
7,713,226.21x = 10,644,021.45 × 4,228,445.80 - Step 4: Simplify right side
7,713,226.21x = 45,007,667,795,362.41 - Step 5: Solve for x
x = 45,007,667,795,362.41/7,713,226.21 - Step 6: Final answer
x = 5,835,128.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.