Finding the Fourth Proportional to 15,125,129.26, 20,872,927.18 and 8,249,611.38
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Solution
The fourth proportional to 15,125,129.26, 20,872,927.18 and 8,249,611.38 is: 11,384,599.41
Step by Step Solution
- Step 1: Write the proportion equation
15,125,129.26 : 20,872,927.18 = 8,249,611.38 : x - Step 2: Convert to fraction form
15,125,129.26/20,872,927.18 = 8,249,611.38/x - Step 3: Cross multiply
15,125,129.26x = 20,872,927.18 × 8,249,611.38 - Step 4: Simplify right side
15,125,129.26x = 172,193,537,598,039.31 - Step 5: Solve for x
x = 172,193,537,598,039.31/15,125,129.26 - Step 6: Final answer
x = 11,384,599.41
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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.