Finding the Fourth Proportional to 128,457,152.24, 177,266,361.60 and 69,718,635.09
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Solution
The fourth proportional to 128,457,152.24, 177,266,361.60 and 69,718,635.09 is: 96,209,269.50
Step by Step Solution
- Step 1: Write the proportion equation
128,457,152.24 : 177,266,361.60 = 69,718,635.09 : x - Step 2: Convert to fraction form
128,457,152.24/177,266,361.60 = 69,718,635.09/x - Step 3: Cross multiply
128,457,152.24x = 177,266,361.60 × 69,718,635.09 - Step 4: Simplify right side
128,457,152.24x = 12,358,768,778,122,388 - Step 5: Solve for x
x = 12,358,768,778,122,388/128,457,152.24 - Step 6: Final answer
x = 96,209,269.50
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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.