Finding the Fourth Proportional to 7,639,755.21, 11,464,346.36 and 3,540,312.20
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Solution
The fourth proportional to 7,639,755.21, 11,464,346.36 and 3,540,312.20 is: 5,312,652.59
Step by Step Solution
- Step 1: Write the proportion equation
7,639,755.21 : 11,464,346.36 = 3,540,312.20 : x - Step 2: Convert to fraction form
7,639,755.21/11,464,346.36 = 3,540,312.20/x - Step 3: Cross multiply
7,639,755.21x = 11,464,346.36 × 3,540,312.20 - Step 4: Simplify right side
7,639,755.21x = 40,587,365,320,845.24 - Step 5: Solve for x
x = 40,587,365,320,845.24/7,639,755.21 - Step 6: Final answer
x = 5,312,652.59
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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.