Finding the Fourth Proportional to 155,280,494.70, 232,920,742.05 and 74,459,861.10
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Solution
The fourth proportional to 155,280,494.70, 232,920,742.05 and 74,459,861.10 is: 111,689,791.65
Step by Step Solution
- Step 1: Write the proportion equation
155,280,494.70 : 232,920,742.05 = 74,459,861.10 : x - Step 2: Convert to fraction form
155,280,494.70/232,920,742.05 = 74,459,861.10/x - Step 3: Cross multiply
155,280,494.70x = 232,920,742.05 × 74,459,861.10 - Step 4: Simplify right side
155,280,494.70x = 17,343,246,100,351,928 - Step 5: Solve for x
x = 17,343,246,100,351,928/155,280,494.70 - Step 6: Final answer
x = 111,689,791.65
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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.