Finding the Fourth Proportional to 7,639,971.75, 10,544,658.71 and 4,378,972.19
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Solution
The fourth proportional to 7,639,971.75, 10,544,658.71 and 4,378,972.19 is: 6,043,840.04
Step by Step Solution
- Step 1: Write the proportion equation
7,639,971.75 : 10,544,658.71 = 4,378,972.19 : x - Step 2: Convert to fraction form
7,639,971.75/10,544,658.71 = 4,378,972.19/x - Step 3: Cross multiply
7,639,971.75x = 10,544,658.71 × 4,378,972.19 - Step 4: Simplify right side
7,639,971.75x = 46,174,767,169,513.12 - Step 5: Solve for x
x = 46,174,767,169,513.12/7,639,971.75 - Step 6: Final answer
x = 6,043,840.04
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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.