Finding the Fourth Proportional to 10,647,839.76, 15,974,453.88 and 2,971,483.68
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Solution
The fourth proportional to 10,647,839.76, 15,974,453.88 and 2,971,483.68 is: 4,457,977.40
Step by Step Solution
- Step 1: Write the proportion equation
10,647,839.76 : 15,974,453.88 = 2,971,483.68 : x - Step 2: Convert to fraction form
10,647,839.76/15,974,453.88 = 2,971,483.68/x - Step 3: Cross multiply
10,647,839.76x = 15,974,453.88 × 2,971,483.68 - Step 4: Simplify right side
10,647,839.76x = 47,467,829,001,332.68 - Step 5: Solve for x
x = 47,467,829,001,332.68/10,647,839.76 - Step 6: Final answer
x = 4,457,977.40
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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.