Finding the Fourth Proportional to 499,974,149.16, 689,969,844.42 and 276,959,246.76
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Solution
The fourth proportional to 499,974,149.16, 689,969,844.42 and 276,959,246.76 is: 382,206,817.53
Step by Step Solution
- Step 1: Write the proportion equation
499,974,149.16 : 689,969,844.42 = 276,959,246.76 : x - Step 2: Convert to fraction form
499,974,149.16/689,969,844.42 = 276,959,246.76/x - Step 3: Cross multiply
499,974,149.16x = 689,969,844.42 × 276,959,246.76 - Step 4: Simplify right side
499,974,149.16x = 191,093,528,397,677,568 - Step 5: Solve for x
x = 191,093,528,397,677,568/499,974,149.16 - Step 6: Final answer
x = 382,206,817.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.