Finding the Fourth Proportional to 66,400,975.20, 99,620,125.20 and 32,323,432.80
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Solution
The fourth proportional to 66,400,975.20, 99,620,125.20 and 32,323,432.80 is: 48,494,233.90
Step by Step Solution
- Step 1: Write the proportion equation
66,400,975.20 : 99,620,125.20 = 32,323,432.80 : x - Step 2: Convert to fraction form
66,400,975.20/99,620,125.20 = 32,323,432.80/x - Step 3: Cross multiply
66,400,975.20x = 99,620,125.20 × 32,323,432.80 - Step 4: Simplify right side
66,400,975.20x = 3,220,064,422,429,786.50 - Step 5: Solve for x
x = 3,220,064,422,429,786.50/66,400,975.20 - Step 6: Final answer
x = 48,494,233.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.