Finding the Fourth Proportional to 136,409,128.88, 188,242,373.40 and 74,528,135.60
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Solution
The fourth proportional to 136,409,128.88, 188,242,373.40 and 74,528,135.60 is: 102,847,611.78
Step by Step Solution
- Step 1: Write the proportion equation
136,409,128.88 : 188,242,373.40 = 74,528,135.60 : x - Step 2: Convert to fraction form
136,409,128.88/188,242,373.40 = 74,528,135.60/x - Step 3: Cross multiply
136,409,128.88x = 188,242,373.40 × 74,528,135.60 - Step 4: Simplify right side
136,409,128.88x = 14,029,353,130,421,032 - Step 5: Solve for x
x = 14,029,353,130,421,032/136,409,128.88 - Step 6: Final answer
x = 102,847,611.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.