Finding the Fourth Proportional to 51,986,029.63, 71,740,457.73 and 28,464,138.97
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Solution
The fourth proportional to 51,986,029.63, 71,740,457.73 and 28,464,138.97 is: 39,280,367.69
Step by Step Solution
- Step 1: Write the proportion equation
51,986,029.63 : 71,740,457.73 = 28,464,138.97 : x - Step 2: Convert to fraction form
51,986,029.63/71,740,457.73 = 28,464,138.97/x - Step 3: Cross multiply
51,986,029.63x = 71,740,457.73 × 28,464,138.97 - Step 4: Simplify right side
51,986,029.63x = 2,042,030,358,598,130.75 - Step 5: Solve for x
x = 2,042,030,358,598,130.75/51,986,029.63 - Step 6: Final answer
x = 39,280,367.69
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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.