Finding the Fourth Proportional to 18,391,883.12, 27,589,486.68 and 7,032,430.16
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Solution
The fourth proportional to 18,391,883.12, 27,589,486.68 and 7,032,430.16 is: 10,549,280.73
Step by Step Solution
- Step 1: Write the proportion equation
18,391,883.12 : 27,589,486.68 = 7,032,430.16 : x - Step 2: Convert to fraction form
18,391,883.12/27,589,486.68 = 7,032,430.16/x - Step 3: Cross multiply
18,391,883.12x = 27,589,486.68 × 7,032,430.16 - Step 4: Simplify right side
18,391,883.12x = 194,021,138,227,350.28 - Step 5: Solve for x
x = 194,021,138,227,350.28/18,391,883.12 - Step 6: Final answer
x = 10,549,280.73
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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.