Finding the Fourth Proportional to 136,487,725.74, 204,731,589.42 and 45,611,314.74
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Solution
The fourth proportional to 136,487,725.74, 204,731,589.42 and 45,611,314.74 is: 68,416,972.38
Step by Step Solution
- Step 1: Write the proportion equation
136,487,725.74 : 204,731,589.42 = 45,611,314.74 : x - Step 2: Convert to fraction form
136,487,725.74/204,731,589.42 = 45,611,314.74/x - Step 3: Cross multiply
136,487,725.74x = 204,731,589.42 × 45,611,314.74 - Step 4: Simplify right side
136,487,725.74x = 9,338,076,962,256,074 - Step 5: Solve for x
x = 9,338,076,962,256,074/136,487,725.74 - Step 6: Final answer
x = 68,416,972.38
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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.