Finding the Fourth Proportional to 28,471,106.60, 42,702,512.70 and 8,274,242.60
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Solution
The fourth proportional to 28,471,106.60, 42,702,512.70 and 8,274,242.60 is: 12,410,158.65
Step by Step Solution
- Step 1: Write the proportion equation
28,471,106.60 : 42,702,512.70 = 8,274,242.60 : x - Step 2: Convert to fraction form
28,471,106.60/42,702,512.70 = 8,274,242.60/x - Step 3: Cross multiply
28,471,106.60x = 42,702,512.70 × 8,274,242.60 - Step 4: Simplify right side
28,471,106.60x = 353,330,949,709,381 - Step 5: Solve for x
x = 353,330,949,709,381/28,471,106.60 - Step 6: Final answer
x = 12,410,158.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.