Finding the Fourth Proportional to 481,258,285.68, 664,137,276.12 and 261,241,860.72
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Solution
The fourth proportional to 481,258,285.68, 664,137,276.12 and 261,241,860.72 is: 360,514,224.79
Step by Step Solution
- Step 1: Write the proportion equation
481,258,285.68 : 664,137,276.12 = 261,241,860.72 : x - Step 2: Convert to fraction form
481,258,285.68/664,137,276.12 = 261,241,860.72/x - Step 3: Cross multiply
481,258,285.68x = 664,137,276.12 × 261,241,860.72 - Step 4: Simplify right side
481,258,285.68x = 173,500,457,787,101,216 - Step 5: Solve for x
x = 173,500,457,787,101,216/481,258,285.68 - Step 6: Final answer
x = 360,514,224.79
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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.