Finding the Fourth Proportional to 284,378,719.23, 426,584,021.99 and 79,890,851.43
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Solution
The fourth proportional to 284,378,719.23, 426,584,021.99 and 79,890,851.43 is: 119,840,756.07
Step by Step Solution
- Step 1: Write the proportion equation
284,378,719.23 : 426,584,021.99 = 79,890,851.43 : x - Step 2: Convert to fraction form
284,378,719.23/426,584,021.99 = 79,890,851.43/x - Step 3: Cross multiply
284,378,719.23x = 426,584,021.99 × 79,890,851.43 - Step 4: Simplify right side
284,378,719.23x = 34,080,160,722,815,492 - Step 5: Solve for x
x = 34,080,160,722,815,492/284,378,719.23 - Step 6: Final answer
x = 119,840,756.07
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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.