Finding the Fourth Proportional to 385,641,962.28, 532,263,151.62 and 229,096,035.72
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Solution
The fourth proportional to 385,641,962.28, 532,263,151.62 and 229,096,035.72 is: 316,198,416.99
Step by Step Solution
- Step 1: Write the proportion equation
385,641,962.28 : 532,263,151.62 = 229,096,035.72 : x - Step 2: Convert to fraction form
385,641,962.28/532,263,151.62 = 229,096,035.72/x - Step 3: Cross multiply
385,641,962.28x = 532,263,151.62 × 229,096,035.72 - Step 4: Simplify right side
385,641,962.28x = 121,939,377,995,975,296 - Step 5: Solve for x
x = 121,939,377,995,975,296/385,641,962.28 - Step 6: Final answer
x = 316,198,416.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.