Finding the Fourth Proportional to 55,130,407.88, 76,084,410.80 and 31,611,133.08
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Solution
The fourth proportional to 55,130,407.88, 76,084,410.80 and 31,611,133.08 is: 43,625,914.04
Step by Step Solution
- Step 1: Write the proportion equation
55,130,407.88 : 76,084,410.80 = 31,611,133.08 : x - Step 2: Convert to fraction form
55,130,407.88/76,084,410.80 = 31,611,133.08/x - Step 3: Cross multiply
55,130,407.88x = 76,084,410.80 × 31,611,133.08 - Step 4: Simplify right side
55,130,407.88x = 2,405,114,435,112,189 - Step 5: Solve for x
x = 2,405,114,435,112,189/55,130,407.88 - Step 6: Final answer
x = 43,625,914.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.