Finding the Fourth Proportional to 12,310,911.51, 16,989,937.43 and 6,804,167.96
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Solution
The fourth proportional to 12,310,911.51, 16,989,937.43 and 6,804,167.96 is: 9,390,237.90
Step by Step Solution
- Step 1: Write the proportion equation
12,310,911.51 : 16,989,937.43 = 6,804,167.96 : x - Step 2: Convert to fraction form
12,310,911.51/16,989,937.43 = 6,804,167.96/x - Step 3: Cross multiply
12,310,911.51x = 16,989,937.43 × 6,804,167.96 - Step 4: Simplify right side
12,310,911.51x = 115,602,387,784,640.22 - Step 5: Solve for x
x = 115,602,387,784,640.22/12,310,911.51 - Step 6: Final answer
x = 9,390,237.90
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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.