Finding the Fourth Proportional to 295,247,998.40, 442,871,997.60 and 157,498,491.20
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Solution
The fourth proportional to 295,247,998.40, 442,871,997.60 and 157,498,491.20 is: 236,247,736.80
Step by Step Solution
- Step 1: Write the proportion equation
295,247,998.40 : 442,871,997.60 = 157,498,491.20 : x - Step 2: Convert to fraction form
295,247,998.40/442,871,997.60 = 157,498,491.20/x - Step 3: Cross multiply
295,247,998.40x = 442,871,997.60 × 157,498,491.20 - Step 4: Simplify right side
295,247,998.40x = 69,751,671,416,730,016 - Step 5: Solve for x
x = 69,751,671,416,730,016/295,247,998.40 - Step 6: Final answer
x = 236,247,736.80
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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.