Finding the Fourth Proportional to 11,558,309.40, 15,961,188.78 and 8,652,655.62
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Solution
The fourth proportional to 11,558,309.40, 15,961,188.78 and 8,652,655.62 is: 11,948,691.20
Step by Step Solution
- Step 1: Write the proportion equation
11,558,309.40 : 15,961,188.78 = 8,652,655.62 : x - Step 2: Convert to fraction form
11,558,309.40/15,961,188.78 = 8,652,655.62/x - Step 3: Cross multiply
11,558,309.40x = 15,961,188.78 × 8,652,655.62 - Step 4: Simplify right side
11,558,309.40x = 138,106,669,799,147.92 - Step 5: Solve for x
x = 138,106,669,799,147.92/11,558,309.40 - Step 6: Final answer
x = 11,948,691.20
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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.