Finding the Fourth Proportional to 7,578,295.20, 10,457,925.36 and 4,140,462.48
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Solution
The fourth proportional to 7,578,295.20, 10,457,925.36 and 4,140,462.48 is: 5,713,771.56
Step by Step Solution
- Step 1: Write the proportion equation
7,578,295.20 : 10,457,925.36 = 4,140,462.48 : x - Step 2: Convert to fraction form
7,578,295.20/10,457,925.36 = 4,140,462.48/x - Step 3: Cross multiply
7,578,295.20x = 10,457,925.36 × 4,140,462.48 - Step 4: Simplify right side
7,578,295.20x = 43,300,647,571,720.49 - Step 5: Solve for x
x = 43,300,647,571,720.49/7,578,295.20 - Step 6: Final answer
x = 5,713,771.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.