Finding the Fourth Proportional to 18,354,699.36, 27,507,247.70 and 6,988,947.84
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Solution
The fourth proportional to 18,354,699.36, 27,507,247.70 and 6,988,947.84 is: 10,473,978.11
Step by Step Solution
- Step 1: Write the proportion equation
18,354,699.36 : 27,507,247.70 = 6,988,947.84 : x - Step 2: Convert to fraction form
18,354,699.36/27,507,247.70 = 6,988,947.84/x - Step 3: Cross multiply
18,354,699.36x = 27,507,247.70 × 6,988,947.84 - Step 4: Simplify right side
18,354,699.36x = 192,246,719,362,315.22 - Step 5: Solve for x
x = 192,246,719,362,315.22/18,354,699.36 - Step 6: Final answer
x = 10,473,978.11
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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.