Finding the Fourth Proportional to 56,487,656.40, 84,745,918.80 and 18,149,546.40
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Solution
The fourth proportional to 56,487,656.40, 84,745,918.80 and 18,149,546.40 is: 27,228,957.32
Step by Step Solution
- Step 1: Write the proportion equation
56,487,656.40 : 84,745,918.80 = 18,149,546.40 : x - Step 2: Convert to fraction form
56,487,656.40/84,745,918.80 = 18,149,546.40/x - Step 3: Cross multiply
56,487,656.40x = 84,745,918.80 × 18,149,546.40 - Step 4: Simplify right side
56,487,656.40x = 1,538,099,985,471,232.25 - Step 5: Solve for x
x = 1,538,099,985,471,232.25/56,487,656.40 - Step 6: Final answer
x = 27,228,957.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.