Finding the Fourth Proportional to 15,118,576.08, 20,872,125.12 and 10,479,103.44
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Solution
The fourth proportional to 15,118,576.08, 20,872,125.12 and 10,479,103.44 is: 14,467,047.49
Step by Step Solution
- Step 1: Write the proportion equation
15,118,576.08 : 20,872,125.12 = 10,479,103.44 : x - Step 2: Convert to fraction form
15,118,576.08/20,872,125.12 = 10,479,103.44/x - Step 3: Cross multiply
15,118,576.08x = 20,872,125.12 × 10,479,103.44 - Step 4: Simplify right side
15,118,576.08x = 218,721,158,145,102.41 - Step 5: Solve for x
x = 218,721,158,145,102.41/15,118,576.08 - Step 6: Final answer
x = 14,467,047.49
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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.