Finding the Fourth Proportional to 18,391,881.12, 27,589,483.68 and 7,032,428.16
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Solution
The fourth proportional to 18,391,881.12, 27,589,483.68 and 7,032,428.16 is: 10,549,277.73
Step by Step Solution
- Step 1: Write the proportion equation
18,391,881.12 : 27,589,483.68 = 7,032,428.16 : x - Step 2: Convert to fraction form
18,391,881.12/27,589,483.68 = 7,032,428.16/x - Step 3: Cross multiply
18,391,881.12x = 27,589,483.68 × 7,032,428.16 - Step 4: Simplify right side
18,391,881.12x = 194,021,061,951,092.44 - Step 5: Solve for x
x = 194,021,061,951,092.44/18,391,881.12 - Step 6: Final answer
x = 10,549,277.73
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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.