Finding the Fourth Proportional to 10,391,884.80, 15,585,989.76 and 2,819,440.80
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Solution
The fourth proportional to 10,391,884.80, 15,585,989.76 and 2,819,440.80 is: 4,228,662.68
Step by Step Solution
- Step 1: Write the proportion equation
10,391,884.80 : 15,585,989.76 = 2,819,440.80 : x - Step 2: Convert to fraction form
10,391,884.80/15,585,989.76 = 2,819,440.80/x - Step 3: Cross multiply
10,391,884.80x = 15,585,989.76 × 2,819,440.80 - Step 4: Simplify right side
10,391,884.80x = 43,943,775,437,726.20 - Step 5: Solve for x
x = 43,943,775,437,726.20/10,391,884.80 - Step 6: Final answer
x = 4,228,662.68
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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.