Finding the Fourth Proportional to 18,354,686.78, 27,507,228.84 and 6,988,935.26
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Solution
The fourth proportional to 18,354,686.78, 27,507,228.84 and 6,988,935.26 is: 10,473,959.25
Step by Step Solution
- Step 1: Write the proportion equation
18,354,686.78 : 27,507,228.84 = 6,988,935.26 : x - Step 2: Convert to fraction form
18,354,686.78/27,507,228.84 = 6,988,935.26/x - Step 3: Cross multiply
18,354,686.78x = 27,507,228.84 × 6,988,935.26 - Step 4: Simplify right side
18,354,686.78x = 192,246,241,407,228.75 - Step 5: Solve for x
x = 192,246,241,407,228.75/18,354,686.78 - Step 6: Final answer
x = 10,473,959.25
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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.