Finding the Fourth Proportional to 56,750,965.40, 85,138,403.70 and 18,409,485.80
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Solution
The fourth proportional to 56,750,965.40, 85,138,403.70 and 18,409,485.80 is: 27,618,106.99
Step by Step Solution
- Step 1: Write the proportion equation
56,750,965.40 : 85,138,403.70 = 18,409,485.80 : x - Step 2: Convert to fraction form
56,750,965.40/85,138,403.70 = 18,409,485.80/x - Step 3: Cross multiply
56,750,965.40x = 85,138,403.70 × 18,409,485.80 - Step 4: Simplify right side
56,750,965.40x = 1,567,354,233,949,817.50 - Step 5: Solve for x
x = 1,567,354,233,949,817.50/56,750,965.40 - Step 6: Final answer
x = 27,618,106.99
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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.