Finding the Fourth Proportional to 136,485,187.80, 204,727,781.70 and 84,829,122.60
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Solution
The fourth proportional to 136,485,187.80, 204,727,781.70 and 84,829,122.60 is: 127,243,683.90
Step by Step Solution
- Step 1: Write the proportion equation
136,485,187.80 : 204,727,781.70 = 84,829,122.60 : x - Step 2: Convert to fraction form
136,485,187.80/204,727,781.70 = 84,829,122.60/x - Step 3: Cross multiply
136,485,187.80x = 204,727,781.70 × 84,829,122.60 - Step 4: Simplify right side
136,485,187.80x = 17,366,878,093,455,334 - Step 5: Solve for x
x = 17,366,878,093,455,334/136,485,187.80 - Step 6: Final answer
x = 127,243,683.90
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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.