Finding the Fourth Proportional to 244,847,999.20, 367,271,998.80 and 212,961,539.20
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Solution
The fourth proportional to 244,847,999.20, 367,271,998.80 and 212,961,539.20 is: 319,442,308.80
Step by Step Solution
- Step 1: Write the proportion equation
244,847,999.20 : 367,271,998.80 = 212,961,539.20 : x - Step 2: Convert to fraction form
244,847,999.20/367,271,998.80 = 212,961,539.20/x - Step 3: Cross multiply
244,847,999.20x = 367,271,998.80 × 212,961,539.20 - Step 4: Simplify right side
244,847,999.20x = 78,214,810,169,508,544 - Step 5: Solve for x
x = 78,214,810,169,508,544/244,847,999.20 - Step 6: Final answer
x = 319,442,308.80
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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.