Finding the Fourth Proportional to 7,402,430.40, 11,103,645.60 and 2,354,251.20
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Solution
The fourth proportional to 7,402,430.40, 11,103,645.60 and 2,354,251.20 is: 3,531,376.80
Step by Step Solution
- Step 1: Write the proportion equation
7,402,430.40 : 11,103,645.60 = 2,354,251.20 : x - Step 2: Convert to fraction form
7,402,430.40/11,103,645.60 = 2,354,251.20/x - Step 3: Cross multiply
7,402,430.40x = 11,103,645.60 × 2,354,251.20 - Step 4: Simplify right side
7,402,430.40x = 26,140,770,978,174.72 - Step 5: Solve for x
x = 26,140,770,978,174.72/7,402,430.40 - Step 6: Final answer
x = 3,531,376.80
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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.