Finding the Fourth Proportional to 128,523,575.87, 192,791,563.94 and 42,260,072.75
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Solution
The fourth proportional to 128,523,575.87, 192,791,563.94 and 42,260,072.75 is: 63,392,147.80
Step by Step Solution
- Step 1: Write the proportion equation
128,523,575.87 : 192,791,563.94 = 42,260,072.75 : x - Step 2: Convert to fraction form
128,523,575.87/192,791,563.94 = 42,260,072.75/x - Step 3: Cross multiply
128,523,575.87x = 192,791,563.94 × 42,260,072.75 - Step 4: Simplify right side
128,523,575.87x = 8,147,385,516,832,368 - Step 5: Solve for x
x = 8,147,385,516,832,368/128,523,575.87 - Step 6: Final answer
x = 63,392,147.80
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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.