Finding the Fourth Proportional to 2,681,423,998.40, 4,022,135,997.60 and 742,727,230.40
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Solution
The fourth proportional to 2,681,423,998.40, 4,022,135,997.60 and 742,727,230.40 is: 1,114,090,845.60
Step by Step Solution
- Step 1: Write the proportion equation
2,681,423,998.40 : 4,022,135,997.60 = 742,727,230.40 : x - Step 2: Convert to fraction form
2,681,423,998.40/4,022,135,997.60 = 742,727,230.40/x - Step 3: Cross multiply
2,681,423,998.40x = 4,022,135,997.60 × 742,727,230.40 - Step 4: Simplify right side
2,681,423,998.40x = 2,987,349,929,789,588,992 - Step 5: Solve for x
x = 2,987,349,929,789,588,992/2,681,423,998.40 - Step 6: Final answer
x = 1,114,090,845.60
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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.