Finding the Fourth Proportional to 540,190,689.77, 745,234,880.33 and 361,632,103.62
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Solution
The fourth proportional to 540,190,689.77, 745,234,880.33 and 361,632,103.62 is: 498,899,485.99
Step by Step Solution
- Step 1: Write the proportion equation
540,190,689.77 : 745,234,880.33 = 361,632,103.62 : x - Step 2: Convert to fraction form
540,190,689.77/745,234,880.33 = 361,632,103.62/x - Step 3: Cross multiply
540,190,689.77x = 745,234,880.33 × 361,632,103.62 - Step 4: Simplify right side
540,190,689.77x = 269,500,857,462,928,736 - Step 5: Solve for x
x = 269,500,857,462,928,736/540,190,689.77 - Step 6: Final answer
x = 498,899,485.99
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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.