Finding the Fourth Proportional to 7,430,784.40, 11,146,176.60 and 2,382,605.20
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Solution
The fourth proportional to 7,430,784.40, 11,146,176.60 and 2,382,605.20 is: 3,573,907.80
Step by Step Solution
- Step 1: Write the proportion equation
7,430,784.40 : 11,146,176.60 = 2,382,605.20 : x - Step 2: Convert to fraction form
7,430,784.40/11,146,176.60 = 2,382,605.20/x - Step 3: Cross multiply
7,430,784.40x = 11,146,176.60 × 2,382,605.20 - Step 4: Simplify right side
7,430,784.40x = 26,556,938,327,278.32 - Step 5: Solve for x
x = 26,556,938,327,278.32/7,430,784.40 - Step 6: Final answer
x = 3,573,907.80
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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.