Finding the Fourth Proportional to 472,994,671.19, 647,991,923.49 and 455,310,160.02
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Solution
The fourth proportional to 472,994,671.19, 647,991,923.49 and 455,310,160.02 is: 623,764,546.09
Step by Step Solution
- Step 1: Write the proportion equation
472,994,671.19 : 647,991,923.49 = 455,310,160.02 : x - Step 2: Convert to fraction form
472,994,671.19/647,991,923.49 = 455,310,160.02/x - Step 3: Cross multiply
472,994,671.19x = 647,991,923.49 × 455,310,160.02 - Step 4: Simplify right side
472,994,671.19x = 295,037,306,375,899,520 - Step 5: Solve for x
x = 295,037,306,375,899,520/472,994,671.19 - Step 6: Final answer
x = 623,764,546.09
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.