Finding the Fourth Proportional to 13,763,040.78, 18,994,206.48 and 7,569,179.08
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Solution
The fourth proportional to 13,763,040.78, 18,994,206.48 and 7,569,179.08 is: 10,446,132.70
Step by Step Solution
- Step 1: Write the proportion equation
13,763,040.78 : 18,994,206.48 = 7,569,179.08 : x - Step 2: Convert to fraction form
13,763,040.78/18,994,206.48 = 7,569,179.08/x - Step 3: Cross multiply
13,763,040.78x = 18,994,206.48 × 7,569,179.08 - Step 4: Simplify right side
13,763,040.78x = 143,770,550,329,616.44 - Step 5: Solve for x
x = 143,770,550,329,616.44/13,763,040.78 - Step 6: Final answer
x = 10,446,132.70
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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.