Finding the Fourth Proportional to 287,313,867.38, 430,970,806.71 and 68,964,209.42
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Solution
The fourth proportional to 287,313,867.38, 430,970,806.71 and 68,964,209.42 is: 103,446,315.48
Step by Step Solution
- Step 1: Write the proportion equation
287,313,867.38 : 430,970,806.71 = 68,964,209.42 : x - Step 2: Convert to fraction form
287,313,867.38/430,970,806.71 = 68,964,209.42/x - Step 3: Cross multiply
287,313,867.38x = 430,970,806.71 × 68,964,209.42 - Step 4: Simplify right side
287,313,867.38x = 29,721,560,967,854,780 - Step 5: Solve for x
x = 29,721,560,967,854,780/287,313,867.38 - Step 6: Final answer
x = 103,446,315.48
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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.