Finding the Fourth Proportional to 75,668,689.77, 104,313,504.81 and 53,900,866.41
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Solution
The fourth proportional to 75,668,689.77, 104,313,504.81 and 53,900,866.41 is: 74,305,347.49
Step by Step Solution
- Step 1: Write the proportion equation
75,668,689.77 : 104,313,504.81 = 53,900,866.41 : x - Step 2: Convert to fraction form
75,668,689.77/104,313,504.81 = 53,900,866.41/x - Step 3: Cross multiply
75,668,689.77x = 104,313,504.81 × 53,900,866.41 - Step 4: Simplify right side
75,668,689.77x = 5,622,588,287,522,702 - Step 5: Solve for x
x = 5,622,588,287,522,702/75,668,689.77 - Step 6: Final answer
x = 74,305,347.49
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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.