Finding the Fourth Proportional to 18,209,178.51, 27,310,224.36 and 5,254,418.40
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Solution
The fourth proportional to 18,209,178.51, 27,310,224.36 and 5,254,418.40 is: 7,880,605.12
Step by Step Solution
- Step 1: Write the proportion equation
18,209,178.51 : 27,310,224.36 = 5,254,418.40 : x - Step 2: Convert to fraction form
18,209,178.51/27,310,224.36 = 5,254,418.40/x - Step 3: Cross multiply
18,209,178.51x = 27,310,224.36 × 5,254,418.40 - Step 4: Simplify right side
18,209,178.51x = 143,499,345,385,312.22 - Step 5: Solve for x
x = 143,499,345,385,312.22/18,209,178.51 - Step 6: Final answer
x = 7,880,605.12
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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.