Finding the Fourth Proportional to 28,517,922.87, 39,356,847.35 and 15,960,235.95
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Solution
The fourth proportional to 28,517,922.87, 39,356,847.35 and 15,960,235.95 is: 22,026,308.61
Step by Step Solution
- Step 1: Write the proportion equation
28,517,922.87 : 39,356,847.35 = 15,960,235.95 : x - Step 2: Convert to fraction form
28,517,922.87/39,356,847.35 = 15,960,235.95/x - Step 3: Cross multiply
28,517,922.87x = 39,356,847.35 × 15,960,235.95 - Step 4: Simplify right side
28,517,922.87x = 628,144,570,023,958.25 - Step 5: Solve for x
x = 628,144,570,023,958.25/28,517,922.87 - Step 6: Final answer
x = 22,026,308.61
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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.