Finding the Fourth Proportional to 18,536,482.40, 27,804,723.60 and 17,780,655.20
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Solution
The fourth proportional to 18,536,482.40, 27,804,723.60 and 17,780,655.20 is: 26,670,982.80
Step by Step Solution
- Step 1: Write the proportion equation
18,536,482.40 : 27,804,723.60 = 17,780,655.20 : x - Step 2: Convert to fraction form
18,536,482.40/27,804,723.60 = 17,780,655.20/x - Step 3: Cross multiply
18,536,482.40x = 27,804,723.60 × 17,780,655.20 - Step 4: Simplify right side
18,536,482.40x = 494,386,203,262,902.75 - Step 5: Solve for x
x = 494,386,203,262,902.75/18,536,482.40 - Step 6: Final answer
x = 26,670,982.80
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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.