Finding the Fourth Proportional to 10,081,920,216.70, 15,122,880,325.05 and 5,432,874,348.70
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Solution
The fourth proportional to 10,081,920,216.70, 15,122,880,325.05 and 5,432,874,348.70 is: 8,149,311,523.05
Step by Step Solution
- Step 1: Write the proportion equation
10,081,920,216.70 : 15,122,880,325.05 = 5,432,874,348.70 : x - Step 2: Convert to fraction form
10,081,920,216.70/15,122,880,325.05 = 5,432,874,348.70/x - Step 3: Cross multiply
10,081,920,216.70x = 15,122,880,325.05 × 5,432,874,348.70 - Step 4: Simplify right side
10,081,920,216.70x = 82,160,708,596,424,048,640 - Step 5: Solve for x
x = 82,160,708,596,424,048,640/10,081,920,216.70 - Step 6: Final answer
x = 8,149,311,523.05
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Similar ratio
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1.5x scale
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.