Finding the Fourth Proportional to 7,789,907.50, 10,750,108.02 and 4,257,776.92
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Solution
The fourth proportional to 7,789,907.50, 10,750,108.02 and 4,257,776.92 is: 5,875,751.65
Step by Step Solution
- Step 1: Write the proportion equation
7,789,907.50 : 10,750,108.02 = 4,257,776.92 : x - Step 2: Convert to fraction form
7,789,907.50/10,750,108.02 = 4,257,776.92/x - Step 3: Cross multiply
7,789,907.50x = 10,750,108.02 × 4,257,776.92 - Step 4: Simplify right side
7,789,907.50x = 45,771,561,815,062.90 - Step 5: Solve for x
x = 45,771,561,815,062.90/7,789,907.50 - Step 6: Final answer
x = 5,875,751.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.