Finding the Fourth Proportional to 398,642,408.10, 597,963,612.15 and 252,602,421.30
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Solution
The fourth proportional to 398,642,408.10, 597,963,612.15 and 252,602,421.30 is: 378,903,631.95
Step by Step Solution
- Step 1: Write the proportion equation
398,642,408.10 : 597,963,612.15 = 252,602,421.30 : x - Step 2: Convert to fraction form
398,642,408.10/597,963,612.15 = 252,602,421.30/x - Step 3: Cross multiply
398,642,408.10x = 597,963,612.15 × 252,602,421.30 - Step 4: Simplify right side
398,642,408.10x = 151,047,056,278,384,096 - Step 5: Solve for x
x = 151,047,056,278,384,096/398,642,408.10 - Step 6: Final answer
x = 378,903,631.95
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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.