Finding the Fourth Proportional to 639,001,382.40, 957,746,246.40 and 332,135,539.20
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Solution
The fourth proportional to 639,001,382.40, 957,746,246.40 and 332,135,539.20 is: 497,810,450.38
Step by Step Solution
- Step 1: Write the proportion equation
639,001,382.40 : 957,746,246.40 = 332,135,539.20 : x - Step 2: Convert to fraction form
639,001,382.40/957,746,246.40 = 332,135,539.20/x - Step 3: Cross multiply
639,001,382.40x = 957,746,246.40 × 332,135,539.20 - Step 4: Simplify right side
639,001,382.40x = 318,101,565,964,840,064 - Step 5: Solve for x
x = 318,101,565,964,840,064/639,001,382.40 - Step 6: Final answer
x = 497,810,450.38
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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.