Finding the Fourth Proportional to 667,040,244.56, 920,515,624.74 and 369,701,683.02
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Solution
The fourth proportional to 667,040,244.56, 920,515,624.74 and 369,701,683.02 is: 510,188,370.92
Step by Step Solution
- Step 1: Write the proportion equation
667,040,244.56 : 920,515,624.74 = 369,701,683.02 : x - Step 2: Convert to fraction form
667,040,244.56/920,515,624.74 = 369,701,683.02/x - Step 3: Cross multiply
667,040,244.56x = 920,515,624.74 × 369,701,683.02 - Step 4: Simplify right side
667,040,244.56x = 340,316,175,709,132,864 - Step 5: Solve for x
x = 340,316,175,709,132,864/667,040,244.56 - Step 6: Final answer
x = 510,188,370.92
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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.