Finding the Fourth Proportional to 7,879,759.41, 10,875,758.70 and 4,977,304.23
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Solution
The fourth proportional to 7,879,759.41, 10,875,758.70 and 4,977,304.23 is: 6,869,747.79
Step by Step Solution
- Step 1: Write the proportion equation
7,879,759.41 : 10,875,758.70 = 4,977,304.23 : x - Step 2: Convert to fraction form
7,879,759.41/10,875,758.70 = 4,977,304.23/x - Step 3: Cross multiply
7,879,759.41x = 10,875,758.70 × 4,977,304.23 - Step 4: Simplify right side
7,879,759.41x = 54,131,959,781,969.30 - Step 5: Solve for x
x = 54,131,959,781,969.30/7,879,759.41 - Step 6: Final answer
x = 6,869,747.79
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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.