Finding the Fourth Proportional to 136,487,805.42, 204,731,708.67 and 45,611,394.42
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Solution
The fourth proportional to 136,487,805.42, 204,731,708.67 and 45,611,394.42 is: 68,417,091.81
Step by Step Solution
- Step 1: Write the proportion equation
136,487,805.42 : 204,731,708.67 = 45,611,394.42 : x - Step 2: Convert to fraction form
136,487,805.42/204,731,708.67 = 45,611,394.42/x - Step 3: Cross multiply
136,487,805.42x = 204,731,708.67 × 45,611,394.42 - Step 4: Simplify right side
136,487,805.42x = 9,338,098,714,427,904 - Step 5: Solve for x
x = 9,338,098,714,427,904/136,487,805.42 - Step 6: Final answer
x = 68,417,091.81
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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.