Finding the Fourth Proportional to 85,817,292.62, 118,431,912.58 and 48,648,293.28
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Solution
The fourth proportional to 85,817,292.62, 118,431,912.58 and 48,648,293.28 is: 67,136,939.90
Step by Step Solution
- Step 1: Write the proportion equation
85,817,292.62 : 118,431,912.58 = 48,648,293.28 : x - Step 2: Convert to fraction form
85,817,292.62/118,431,912.58 = 48,648,293.28/x - Step 3: Cross multiply
85,817,292.62x = 118,431,912.58 × 48,648,293.28 - Step 4: Simplify right side
85,817,292.62x = 5,761,510,416,781,541 - Step 5: Solve for x
x = 5,761,510,416,781,541/85,817,292.62 - Step 6: Final answer
x = 67,136,939.90
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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.