Finding the Fourth Proportional to 28,471,623.50, 42,775,567.44 and 18,256,497.03
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Solution
The fourth proportional to 28,471,623.50, 42,775,567.44 and 18,256,497.03 is: 27,428,433.08
Step by Step Solution
- Step 1: Write the proportion equation
28,471,623.50 : 42,775,567.44 = 18,256,497.03 : x - Step 2: Convert to fraction form
28,471,623.50/42,775,567.44 = 18,256,497.03/x - Step 3: Cross multiply
28,471,623.50x = 42,775,567.44 × 18,256,497.03 - Step 4: Simplify right side
28,471,623.50x = 780,932,019,924,924.75 - Step 5: Solve for x
x = 780,932,019,924,924.75/28,471,623.50 - Step 6: Final answer
x = 27,428,433.08
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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.