Finding the Fourth Proportional to 303,722,188.36, 455,749,135.50 and 128,818,016.40
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Solution
The fourth proportional to 303,722,188.36, 455,749,135.50 and 128,818,016.40 is: 193,297,367.99
Step by Step Solution
- Step 1: Write the proportion equation
303,722,188.36 : 455,749,135.50 = 128,818,016.40 : x - Step 2: Convert to fraction form
303,722,188.36/455,749,135.50 = 128,818,016.40/x - Step 3: Cross multiply
303,722,188.36x = 455,749,135.50 × 128,818,016.40 - Step 4: Simplify right side
303,722,188.36x = 58,708,699,611,124,824 - Step 5: Solve for x
x = 58,708,699,611,124,824/303,722,188.36 - Step 6: Final answer
x = 193,297,367.99
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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.