Finding the Fourth Proportional to 23,087,755.63, 31,847,220.75 and 15,247,340.11
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Solution
The fourth proportional to 23,087,755.63, 31,847,220.75 and 15,247,340.11 is: 21,032,161.55
Step by Step Solution
- Step 1: Write the proportion equation
23,087,755.63 : 31,847,220.75 = 15,247,340.11 : x - Step 2: Convert to fraction form
23,087,755.63/31,847,220.75 = 15,247,340.11/x - Step 3: Cross multiply
23,087,755.63x = 31,847,220.75 × 15,247,340.11 - Step 4: Simplify right side
23,087,755.63x = 485,585,406,333,499.25 - Step 5: Solve for x
x = 485,585,406,333,499.25/23,087,755.63 - Step 6: Final answer
x = 21,032,161.55
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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.