Finding the Fourth Proportional to 5,415,051.30, 8,122,576.95 and 4,827,185.70
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Solution
The fourth proportional to 5,415,051.30, 8,122,576.95 and 4,827,185.70 is: 7,240,778.55
Step by Step Solution
- Step 1: Write the proportion equation
5,415,051.30 : 8,122,576.95 = 4,827,185.70 : x - Step 2: Convert to fraction form
5,415,051.30/8,122,576.95 = 4,827,185.70/x - Step 3: Cross multiply
5,415,051.30x = 8,122,576.95 × 4,827,185.70 - Step 4: Simplify right side
5,415,051.30x = 39,209,187,300,189.62 - Step 5: Solve for x
x = 39,209,187,300,189.62/5,415,051.30 - Step 6: Final answer
x = 7,240,778.55
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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.