Finding the Fourth Proportional to 28,975,759.12, 39,977,827.50 and 17,369,087.68
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Solution
The fourth proportional to 28,975,759.12, 39,977,827.50 and 17,369,087.68 is: 23,964,113.87
Step by Step Solution
- Step 1: Write the proportion equation
28,975,759.12 : 39,977,827.50 = 17,369,087.68 : x - Step 2: Convert to fraction form
28,975,759.12/39,977,827.50 = 17,369,087.68/x - Step 3: Cross multiply
28,975,759.12x = 39,977,827.50 × 17,369,087.68 - Step 4: Simplify right side
28,975,759.12x = 694,378,391,103,415.25 - Step 5: Solve for x
x = 694,378,391,103,415.25/28,975,759.12 - Step 6: Final answer
x = 23,964,113.87
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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.