Finding the Fourth Proportional to 50,678,968.86, 69,934,283.49 and 28,651,151.28
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Solution
The fourth proportional to 50,678,968.86, 69,934,283.49 and 28,651,151.28 is: 39,537,065.99
Step by Step Solution
- Step 1: Write the proportion equation
50,678,968.86 : 69,934,283.49 = 28,651,151.28 : x - Step 2: Convert to fraction form
50,678,968.86/69,934,283.49 = 28,651,151.28/x - Step 3: Cross multiply
50,678,968.86x = 69,934,283.49 × 28,651,151.28 - Step 4: Simplify right side
50,678,968.86x = 2,003,697,735,930,396.25 - Step 5: Solve for x
x = 2,003,697,735,930,396.25/50,678,968.86 - Step 6: Final answer
x = 39,537,065.99
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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.