Finding the Fourth Proportional to 31,121,847.54, 46,685,013.39 and 11,952,604.62
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Solution
The fourth proportional to 31,121,847.54, 46,685,013.39 and 11,952,604.62 is: 17,929,768.02
Step by Step Solution
- Step 1: Write the proportion equation
31,121,847.54 : 46,685,013.39 = 11,952,604.62 : x - Step 2: Convert to fraction form
31,121,847.54/46,685,013.39 = 11,952,604.62/x - Step 3: Cross multiply
31,121,847.54x = 46,685,013.39 × 11,952,604.62 - Step 4: Simplify right side
31,121,847.54x = 558,007,506,730,075.81 - Step 5: Solve for x
x = 558,007,506,730,075.81/31,121,847.54 - Step 6: Final answer
x = 17,929,768.02
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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.