Finding the Fourth Proportional to 13,603,693.93, 18,773,945.99 and 7,492,120.81
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Solution
The fourth proportional to 13,603,693.93, 18,773,945.99 and 7,492,120.81 is: 10,339,593.95
Step by Step Solution
- Step 1: Write the proportion equation
13,603,693.93 : 18,773,945.99 = 7,492,120.81 : x - Step 2: Convert to fraction form
13,603,693.93/18,773,945.99 = 7,492,120.81/x - Step 3: Cross multiply
13,603,693.93x = 18,773,945.99 × 7,492,120.81 - Step 4: Simplify right side
13,603,693.93x = 140,656,671,400,034.44 - Step 5: Solve for x
x = 140,656,671,400,034.44/13,603,693.93 - Step 6: Final answer
x = 10,339,593.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.