Finding the Fourth Proportional to 10,239,321.21, 14,129,059.41 and 5,655,369.21
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Solution
The fourth proportional to 10,239,321.21, 14,129,059.41 and 5,655,369.21 is: 7,803,744.60
Step by Step Solution
- Step 1: Write the proportion equation
10,239,321.21 : 14,129,059.41 = 5,655,369.21 : x - Step 2: Convert to fraction form
10,239,321.21/14,129,059.41 = 5,655,369.21/x - Step 3: Cross multiply
10,239,321.21x = 14,129,059.41 × 5,655,369.21 - Step 4: Simplify right side
10,239,321.21x = 79,905,047,553,574.77 - Step 5: Solve for x
x = 79,905,047,553,574.77/10,239,321.21 - Step 6: Final answer
x = 7,803,744.60
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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.