Finding the Fourth Proportional to 3,979,246,543.20, 5,968,869,814.80 and 3,060,916,495.20
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Solution
The fourth proportional to 3,979,246,543.20, 5,968,869,814.80 and 3,060,916,495.20 is: 4,591,374,742.80
Step by Step Solution
- Step 1: Write the proportion equation
3,979,246,543.20 : 5,968,869,814.80 = 3,060,916,495.20 : x - Step 2: Convert to fraction form
3,979,246,543.20/5,968,869,814.80 = 3,060,916,495.20/x - Step 3: Cross multiply
3,979,246,543.20x = 5,968,869,814.80 × 3,060,916,495.20 - Step 4: Simplify right side
3,979,246,543.20x = 18,270,212,073,822,689,280 - Step 5: Solve for x
x = 18,270,212,073,822,689,280/3,979,246,543.20 - Step 6: Final answer
x = 4,591,374,742.80
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Double scale
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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.