Finding the Fourth Proportional to 15,163,982.40, 22,749,961.92 and 5,449,576.80
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Solution
The fourth proportional to 15,163,982.40, 22,749,961.92 and 5,449,576.80 is: 8,175,798.51
Step by Step Solution
- Step 1: Write the proportion equation
15,163,982.40 : 22,749,961.92 = 5,449,576.80 : x - Step 2: Convert to fraction form
15,163,982.40/22,749,961.92 = 5,449,576.80/x - Step 3: Cross multiply
15,163,982.40x = 22,749,961.92 × 5,449,576.80 - Step 4: Simplify right side
15,163,982.40x = 123,977,664,680,115.47 - Step 5: Solve for x
x = 123,977,664,680,115.47/15,163,982.40 - Step 6: Final answer
x = 8,175,798.51
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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.